Front Cover
 Title Page
 Physics connection to the 2003...
 Faculty awards and recognition
 Department conferences
 New Magnetic Lab director...
 Research news
 The Society of Physics Student...
 Undergraduate and graduate honors...
 Department of Physics annual awards...
 Masters and PhD theses listing...
 Alumni news and updates
 Back Cover

Group Title: Florida physics news
Title: Florida physics news ; vol. 2
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Title: Florida physics news ; vol. 2
Series Title: Florida physics news
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Language: English
Creator: University of Florida Department of Physics
Publisher: University of Florida Department of Physics
Publication Date: 2004
Subject: University of Florida.   ( lcsh )
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Table of Contents
    Front Cover
        Page 1
    Title Page
        Page 2
    Physics connection to the 2003 Nobel Prize
        Page 3
    Faculty awards and recognition
        Page 4
        Page 5
        Page 6
        Page 7
        Page 8
    Department conferences
        Page 9
    New Magnetic Lab director named
        Page 10
    Research news
        Page 11
        Page 12
        Page 13
        Page 14
        Page 15
        Page 16
        Page 17
    The Society of Physics Students
        Page 18
    Undergraduate and graduate honors and awards
        Page 19
    Department of Physics annual awards for 2003
        Page 20
    Masters and PhD theses listing for 1990 - Spring 2004
        Page 21
        Page 22
        Page 23
        Page 24
        Page 25
    Alumni news and updates
        Page 26
        Page 27
    Back Cover
        Page 28
Full Text


L -


The Physics Department
Alumni Newsletter
Florida Physics News
Fall 2004


(top) UF Bookstore and Welcome Center opened in
2003. (left) The new addition to Ben Hill C-, itt
Stadium, including new press boxes, and box seating
was completed in 2003. (right) The new Emerson
Alumni Hall across from Ben Hill C-, iri Stadium.


I Florida Physic. s Ne

Letter from the Chair

This second issue of Florida Physics
News follows on the heels of a it/fil ,- I,-
sponse to last year's inaugural issue. Inside
you'll find information about the faculty,
staff, students, and alumni, as well as high-
light articles on research, teaching, and out-
reach. I would like to take this opportunity
to touch upon some of the news and issues
that face our department, university, and
We have had a successful year of fac-
ulty recruiting. As mentioned in last year's
letter, experimental particle astrophysics is
one of our new research directions, and in
this area we have hired Assistant Professors
Guido Mueller, formerly a research scien-
tist with the UF LIGO group working on
gravitational wave searches, and Laura
Baudis, who joined us from Stanford Uni-
versity where she worked on an experiment
searchingfor dark matter. We have strength-
ened our effort in nanoscience with the ad-
dition of Assistant Professor Ho Bun Chan,
formerly a member of the technical staff at
Lucent Technologies/Bell Labs, who uses

systems (MEMS) to study fundamental
physics such as the Casimir forces. We also
welcome Assistant Professor Katia
Matcheva, who will join us from Cornell
University where she is involved in the theo-
retical modeling of planetary atmospheres
and in the interpretation of data from space
missions, including the Cassini mission to
Saturn. Professor Henri Van Rinsvelt retired
in June 2004 after 37 years of distinguished
service and teaching at the 1Iu ,..I sih and
he will be sorely missed. We do expect to see
him around the department I..- il,Ily and
will continue to count on his advice and wis-
dom. Fio,ill, this has been a good year for
faculty awards and recognition; they have
been so numerous that I will refer you to the
articles inside for details. I am especially
proud of the awards garnered by our young
faculty, including an NSF CAREER Award
to Steve Hagen, a Department of Ei.., '-t
Outstanding Junior Investigator Award to
Konstantin Matchev, and an Alfred P. Sloan
Research Fellowship to Yoon Lee.
There have been changes in the univer-
sity and its administration. UF's 11th Presi-
dent, Dr. J. Bernard "Bernie" Machen,
assumed office on January 5th, 2004. He has

been very visible on campus (including a
visit to the physics department), and has
made widely known his positions on increas-
ing the diversity of the faculty and student
body and rewarding faculty performance.
The university's budget outlook is better this
year than it has been for the past three years,
with the result that the faculty will receive a
long-overdue merit raise, and several cam-
pus-wide initiatives, including a
nanoscience and technology building, are
These are interesting times for our pro-
fession as well. Next year is special indeed -
the year 2005 marks the 100th anniversary

continued on page 4

Physics Connection to the 2003 Nobel Prizes

On October 6, 2003, the Nobel Prize
for Medicine was awarded to Dr. Paul
Lauterbur of the University of Illinois at
Urbana and Sir Peter Mansfield of the
University of Nottingham in England,
developers of magnetic resonance imag-
ing (MRI).
MRI technology is based on the re-
search of Nuclear Magnetic Resonance
spectroscopy, in which molecules are en-
trained in a strong magnetic field and
zapped with radio waves. When the
technology was beginning its use in
Medicine, the nuclear (N) term was
dropped to avoid the public misunder-
standing that the word nuclear may
mean radioactive, when in fact it refers
to the harmless behavior in the presence
of a magnetic field.

One of the major contributors to
NMR research was Prof. Raymond An-
drew, a Graduate Research Professor of
Physics at the University of Florida from
1983-1998, who also held joint appoint-
ments in the Departments of Radiology
and Nuclear Engineering. Prof.
Andrew's first work on NMR came
shortly after its discovery at Harvard
University, where he was a Common-
wealth Fellow from 1948-49. In 1974
when he was a member of the Physics
Department at the University of
Nottingham, Prof. Andrew began to fo-
cus his research in MRI technology af-
ter hearing Dr. Lauterbur speak at a
conference in Bombay, whereupon he
and Dr. Waldo Hinshaw, an American
post-doc, started their research to im-
prove on Dr. Lauterbur's imaging tech-

nique. One of their colleagues at the
University of Nottingham was Sir Peter
Mansfield, and his research group was
studying NMR for the purposes of can-
cer detection.
Prof. Andrew was a professor at the
University of Wales and made one of his
most significant discoveries there in the
mid 1960s; the narrowing of NMR lines
by magic angle spinning, which has
been the foundation of modern high
resolution NMR studies for chemical
structures. He continued his research
when he returned to the University of
Nottingham, where he worked on using
rapid rotation of samples for high-reso-
lution studies and made another major
contribution to the field of magnetic
resonance with his pioneering studies on

continued on page 7
Alumni Newsletter 3

I lrd Phs ics Nes 20

Ci.ii continuedfrom page 3

ofAlbert Einstein's "miraculous year" dur-
ing which he published seminal papers on
light quanta, Brownian motion and the spe-
cial theory of relativity. To coincide with this
anniversary, and to raise public awareness
of the role of physics in society, the year 2005
is being celebrated as the World Year ofPhys-
ics, and the UN General Assembly has de-
clared 2005 to be the International Year of
Physics. Our department will be planning
some events as part of this celebration, and
details will beforthcoming. Other good news
is that nationwide the number of under-
graduate physics majors is up, as is the num-
ber of US citizens or permanent residents
entering graduate school in physics; both of
these statistics are reflected in our own pro-
grams. The bad news is that funding for the
physical sciences is in peril, due in large part
to the ballooning federal budget deficit. In
2002 Congress passed the NSF Authoriza-
tion Act of 2002 (signed by President Bush
in December 2002), which authorized the
doubling of the budget of the National Sci-
ence Foundation over afive-year period. Un-
f.;i'.i,ithl, this authorization has yet to
translate into actualfunding, with physical
science funding slated to remain flat or de-
crease over the next several years. If you are
as concerned about this as I am, please get
in touch with me and I can tell you how you
can help.
In these changing times we need our
alumni more than ever. How can you help?
With your experiences and expertise you can
help us recruit the best physics majors and
graduate students and you can offer career
advice and assist in job placement for our
students. Your contributions to the physics
fund will improve the research and instruc-
tional infrastructure of the department, and
will move us toward our goal of raisingfunds
for graduate fellowships and for endowed
professorships. Get in touch and get in-
volved! Your involvement will be most ap-
preciated by us and rewarding for you.

Alan Dorsey
Professor and Ci, iiJ,,0i1

Professor Awarded Prestigious

Commemorative Medal

The Commemorative Medal given
by the Faculty of Mathematics and Phys-
ics of the Charles University in Prague
was awarded to Professor Guenakh
Mitselmakher of the University of
Florida along with Professor Frank
Wilczek of MIT and Professor Franco
Bradamante of Trieste University.
Prof. Mitselmakher traveled to
Prague to receive his medal on July 10,
2003. The ceremony was during the
"Physics at LHC" conference which the
University of Florida helped to organize From Left: Professors
along with CERN and Charles Univer- Charles university G
the University of Fl
sity. This award honors him for his work Wilczek of MIT (winner
in experimental particle physics in par- of the Faculty of Mathe,
ticular his contributions to the experi- Charles University.
ments at particle colliders as well as his
integrating role in the international sci-
entific research, including contributions
to the cooperation of the Charles Uni-
versity with major research centers.
Charles University was founded in
the 14th Century by Charles IV, the Em-
peror of the Holy Roman Empire. The
list of physicists who worked in Prague
includes Johannes Kepler, who discov-
ered two first Laws of Planetary Motion
in Prague and Albert Einstein, who con-
ceived his Theory of General Relativity The Commemorati
Charles IV, Empero.
while being a Professor in Prague. Charles I Empero
Empire,founder of t

Miroslav Finger of the
uenakh Mitselmakher of
orida (winner), Frank
), and Ivan Netuka, Dean
matics and Physics of the

ve Medal depicting
r of the Holy Roman
ie Charles University.

Ramond Receives New Honor and Celebrates a
Scientific Anniversary

Professor Pierre Ramond has been named the 2004 Oskar Klein Lecturer. This
is a prestigious honor which includes past lectures by Nobel Laureates including
C. N. Yang, Steven Weinberg, Hans A. Bethe, T. D. Lee, and Gerard 't Hooft. Oskar
Klein, b. 1894 d. 1977, is known widely for his part in the Kaluza-Klein Theory (the
existence of extra dimensions) and the Klein-Gordon equation (the first relativis-
tic wave equation). The Oskar Klein Lectures are sponsored by the Royal Swedish
Academy of Sciences through its Nobel Institute for Physics and by Stockholm
University. Professor Pierre Ramond was invited to give his lecture at the 2004

continued on page 10

4 University of Florida Department of Physics

I Florida Physic. s Ne

Ohrn Receives UF Teacher/Scholar Award

-CLAS News and Publications
Dr. N. Yngve Ohrn, a professor of
chemistry and physics, received the
2003-04 University of Florida Teacher/
Scholar Award. The award is the
university's highest honor for faculty
who demonstrate excellence in teaching
and scholarly activity, and exhibit vis-
ibility within and beyond the university.
The awardee serves as a very distin-
guished example of the teacher/scholar
as represented at the UF.
For 38 years, Ohrn has demon-
strated his commitment to UF through
an exceptionally high level of scholar-
ship, teaching and service. Ohrn is a
world-recognized scholar for his funda-
mental and important contributions to
quantum chemistry for which he has re-
ceived many recognition, including a
gold medal awarded by the King of Swe-
den in 1980.
His research interests include the
application of quantum mechanics and
statistical physics to atomic and molecu-
lar processes, in particular the electronic

structure and dy-
namics of mo-
lecular systems.
He is a Fellow of
the American
Physical Society
and a foreign
member of the
Finnish Academy
of Sciences, the
Royal Danish Academy of Sciences and
the Swedish Royal Science Society.
During his tenure, Ohrn has super-
vised more than 20 doctoral students
and more than 30 postdoctoral scientists,
and he has maintained consistent extra-
mural funding for more than 30 years.
Generations of students at all levels have
enjoyed Ohm's lectures and mentorship,
and student evaluations consistently
note that he is a gifted teacher. He also
has served as a judge at middle school
and high school science competitions in
Alachua County.

Professor Greg Stewart has been se-
lected as the 2003-2004 Gibson Term Pro-
fessorship in the College of Liberal Arts
& Sciences. These professorships are
awarded to faculty who have demon-
strated excellence in scholarship and
teaching. The professorships also come
with a one-time salary supplement and
research allocation.
Professor Stewart specializes in ex-
perimental condensed matter physics.
He received his PhD in applied physics
from Stanford University in 1975 and
has taught at UF since 1985. In 1990-
1998, he held a joint appointment as a
chaired professor at the University of
Augsburg in Germany.
His research group focuses on ad-
vancing understanding of the unusual

magnetic and su-
properties of
highly correlated
f-electron metallic
compounds, and
he is internation-
ally recognized as
a leader in the
measurement of
new materials in Photo by Jane Do nguez,
CLAS News and Publications
high magnetic
fields. Stewart is a fellow of the Ameri-
can Physical Society and is currently
teaching a new general education
course, "The Development of Modern
Ideas in Physics".

Hebard Named UFRF
Research Professor
-CLAS News and Publications

The University
of Florida Research
Foundation named
Physics Professor
Arthur Hebard to
its annual class of
UF Research Foun-
dation Professors. T
The three-year pro-
fessorships were created in recognition
of faculty who have established a dis-
tinguished record of research and schol-
arship that is expected to lead to
continuing distinction in their field. This
year, six CLAS faculty have been named
UFRF professors, and each has been
awarded a $5,000 annual salary supple-
ment and a one-time $3,000 research
Hebard specializes in condensed
matter. His research focuses on the fab-
rication and characterization of thin-film
structures and the unusual physical phe-
nomena that occur within restricted di-
mensions. Much of his work is done
through the facilities of the National
High Magnetic Field Laboratory and
consists of four key areas -transport in
thin films, magneto-transport in semi-
metals, novel interfacial effects in thin-
film capacitors and magnetic
semiconductors. He has been issued six
US patents for his work and has received
numerous grants from the National Sci-
ence Foundation. Hebard came to UF in
1996, after spending most of his profes-
sional career as a member of the techni-
cal staff at AT&T Laboratories.

Alumni Newsletter 5

Gibson Professorship Awarded to Stewart
-CLAS News and Publications

I lrd Phs ics Nes 20

Ihas Receives Research
Opportunity Award

As one of six winners of the Research
Opportunity Award from the Research
Corporation, Professor Gary Ihas re-
ceived the maximum allowed grant of
"This award is for scientists of dem-
onstrated productivity seeking to ex-
plore new experimental research."
Selection is based on the scientific sig-
nificance and originality of the research,
potential for enhancement of the
applicant's career, evidence of support
from the department and institution, the
candidate's past record and potential to
mount and sustain a competitive re-
search program, and evidence of the
applicant's vigor and self-motivation.
For more information on the Re-
search Corporation and the awards
available please visit

Konigsberg Awarded

Dr. Jacobo Konigsberg has been
awarded the 2004 Medal of the Depart-
ment of Particles and Fields of the Mexi-
can Physical Society. The award is for
Mexican scientists that have distin-
guished themselves internationally due
to their contributions to the field and/or
for contributing to the development of
Particle Physics in Mexico. Dr.
Konigsberg is currently working on the
CDF Experiment at FermiLab and his
main research focus has been on the dis-
covery and further studies of the Top
Quark. The medal was presented to Dr.
Konigsberg in August 2004 at a cer-
emony at the Xi Mexican School of Par-
ticles and Fields, where he also gave
several lectures on Experimental Top
Quark Physics.

Outstanding Junior
Investigator Award to

Professor Konstantin Matchev has
been awarded a Department of Energy
Outstanding Junior Investigator (OJI)
Award. These competitive and presti-
gious awards are given to tenure track
faculty and are meant to identify the best
young researchers in high energy phys-
ics. This is the second OJI for the de-
partment; the first was awarded to Dr.
Darin Acosta in 2001.

Lee Receives Fellowship

Professor Yoonseok Lee has been
awarded with the 2004 Alfred P Sloan
Research Fellowship. This fellowship is
designed to "stimulate fundamental re-
search by young scholars of outstand-
ing promise." He will receive $40,000
over a two year period in support of his
research which currently includes
acoustic and magnetic properties of liq-
uid and solid 3He and low temperature
properties of low dimensional conduc-


Physics' Third NSF CAREER Award Recipient

-CLAS News and Publications
Professor Stephen Hagen received
a National Science Foundation "CA-
REER" award. This will be the third
CAREER Award in 2 years for the de-
partment. Professors Stephen Hill and
Yoonseok Lee were recipients in 2003.
Professor Hagen will use his award
to further his study of protein molecules
and how they assemble themselves, or
"fold", to carry out their biochemical
function. Professor Hagen's research is
interdisciplinary, and he collaborates
with researchers in the Department of
Chemistry, the College of Medicine and
McKnight Brain Institute.
The CAREER program recognizes

and supports the early career-develop-
ment activities of those teacher-scholars
who are most likely to become the aca-
demic leaders of the 21st century. CA-
REER awardees are selected on the basis
of creative, career-development plans
that effectively integrate research and
education within the context of the mis-
sion of their institution. NSF encourages
submission of CAREER proposals from
new faculty at all CAREER eligible in-
stitutions. Such plans should build a
firm foundation for a lifetime of inte-
grated contributions to research and
education. (http://www.nsf.gov/home/

American Physical Society Division Elections

Professor Paul Avery has been
elected the new Vice Chair of the South-
eastern Section of the American Physi-
cal Society (SESAPS). Professor Avery
will be Vice Chair in 2004/2005, Chair-
Elect in 2005/2006 and Chair in 2006/

Tanner- DCMP
Professor David Tanner has been
elected as the new Vice-Chair of the Di-
vision of Condensed Matter Physics
(DCMP) of the American Physical Soci-
ety (APS). Professor Tanner will take of-
fice at the 2004 March Meeting of the
APS. In 2005, he will be the Chair-Elect,
and then the Chair of DCMP in 2006.

6 University of Florida Department of Physics

I Florida-Physics News

Monkhorst Receives Two U.S. Patents

Professor Hendrik Monkhorst was
recently issued two US Patents. Both are
titled, "Controlled Fusion in a Field Re-
versed Configuration and Direct Energy
The direct ,.:iii conversion that is
described in the patents is a new method
by which to obtain electric power from
a possible fusion reactor. Unlike the pre-
vious technique where water is boiled
to get steam to drive turbines which then
drive generators of electricity, this new
patent details the use of an Inverse Cy-
cotron Converter (ICC), which can be
characterized as an inverse of a particle
The direct use for this fusion reac-
tion is for the development of the Col-

liding Beam Fusion Reactor (CBFR)
which is currently underway in Califor-
"The Colliding Beam Fusion Reac-
tor holds the promise to produce fusion
power without nuclear waste, using
abundant hydrogen and boron as fuel.
The reactors can be built and placed any-
where and with various power outputs.
It will make nuclear power safe, dean,
and affordable," Prof. Monkhorst says.
When asked about the possible ap-
plications of this new power conversion,
Prof. Monkhorst stated, "This power
conversion was invented quite specifi-
cally for the aneutronic fusion reactor.
However, it was pointed out to me that
it could find application in recycling un-

used particle beam energy from par-
ticles that did not undergo reactions."
Working along with a startup com-
pany called Tri Alpha Energy, Inc., and
a plasma physics group at University of
California at Irvine, headed by Prof.
Monkhorst's co-inventor Norman
Rostoker, this project is essentially an
electrical engineering invention, which
relies on existing technologies, in par-
ticular, solid-state power electronics.
The patents are: Patent No 6,628,740
(issued 9/30/03) and Patent No 6,611,106
(issued 8/26/03).

Nobel continued from page 3

MRI. Prof. Andrew was also highly in-
volved with the establishment of the
National High Magnetic Field Labora-
tory in Florida in 1990.
Sadly, Prof. Andrew died in 2001 at
the age of 79. A physics fund has been
established in his memory.

Dr. Anthony J. Leggett of the Uni-
versity of Illinois at Urbana shared the
2003 Nobel Prize in Physics with Drs.
Alexei A. Abrikosov, Argonne National
Laboratory, and Vitaly L. Ginzburg, P.N.
Lebedev Physical Institute Moscow,
Russia. They received this award for
their contributions to the theory of su-
perconductors and superfluids.
Dr. Leggett's theoretical work was
crucial for the correct interpretation of
the experimental data obtained, at
Cornell University, by Douglas D.
Osheroff, Robert C. Richardson, and
David M. Lee, who were studying the
thermodynamic properties of solid and
liquid 3He in coexistence at millikelvin

temperatures. Initially, the unusual data
were thought to be a signature of the
magnetic ordering in the solid phase of
3He. At the suggestion of Dr. Leggett,
additional NMR work was performed,
and the observations were unambigu-
ously linked to a superfluid state of liq-
uid 3He. UF Professor Dwight Adams
subsequently discovered the magnetic
ordering in the solid phase of 3He at a
lower temperature. In 1996, Drs.
Osheroff, Richardson, and Lee shared
the Nobel Prize for their discovery, and
these researchers have visited UF on sev-
eral occasions. In 1998, the University
of Florida honored Dr. Dave Lee with
an honorary doctorate degree, while Dr.
Doug Osheroff, now at Stanford Univer-
sity, gave a speech at the dedication of
the New Physics Building. Dr. Bob
Richardson's most recent visit was ear-
lier this semester as one of the finalists
interviewed for the position of President
of UF.
Dr. Leggett's association with UF
dates back to the early 1970's when he

was working on the theoretical descrip-
tion of superfluid 3He. His theoretical
work has served as the basis of numer-
ous experimental studies performed by
UF Professors Dwight Adams, Gary
Ihas, Yoon Lee, Mark Meisel, Neil
Sullivan, and Yasu Takano. In May 1993,
Dr. Leggett visited the Department of
Physics and the Microkelvin Research
Laboratory as a member of the external
advisory committee for the Center for
Ultralow Temperature Research (and to-
day this organization is known as the
Center for Condensed Matter Sciences).
Dr. Leggett served as Physics Chair
Alan Dorsey's thesis advisor at the Uni-
versity of Illinois from 1983-1987. He
also spent about six weeks visiting UF
this past spring, from January 11-Feb-
ruary 15, and gave 10 lectures on quan-
tum fluids as a graduate level mini
course, as well as a physics department
colloquium, condensed matter physics
seminar, and IFT colloquium.

Alumni Newsletter 7

Faculty in Retirement

Lennart R. Peterson
Professor Peterson arrived in
Gainesville as a postdoc with Prof. Alex
Green in 1966 and went on to become a
faculty member in 1967. He has research
interests in atmospheric physics and
theoretical physics. He is recognized as
an excellent instructor, and in 1996 was
honored as an Anderson Scholar Faculty
Honoree. He retired in June 2004 after
having been in the phased retirement
program. He plans to split his time be-
tween Gainesville and Georgia, and is
working on a physics textbook.

L. Elizabeth Seiberling
Professor Seiberling came to UF from a faculty posi-
tion at the University of Pennsylvania and quickly estab-
lished a research program in accelerator-based surface
structure analysis and electron-tunneling microscopy. In
addition to running a federally-funded research program
for several years she was an outstanding citizen in the de-
partment, serving on a host of committees as well as being
an excellent teacher. She also chaired the Building Com-
mittee, whose work resulted in the New Physics Building. f
For three years she acted tirelessly as the interface between
the entire faculty and the architects and contractors; the impressive structure that
resulted is in great part due to her efforts. She is in the phased retirement program
through 2006.

Henri Van Rinsvelt
Professor Van Rinsvelt joined the UF physics department in 1967 after a postdoctoral appoint-
ment in the Nuclear Laboratory at FSU. After a few years' research here at UF in his specialty of
nuclear spectroscopy he decided to enter the then-new field of Particle Induced X-ray Emission
analysis. Henri successfully became a well-known expert in what is now called PIXE analysis, and
applied PIXE to a wide range of problems such as forensic analysis, air pollution, and mammalian
disorders. Henri has also been a stalwart departmental citizen, having served as Associate Chair of
the department for 13 years. He has an ongoing interest in educational outreach activities, including
his "Physics is Fun" shows, which he has put on at local schools and at the FL Museum of Natural
History. After his retirement in June 2004 he plans to continue his involvement with physics educa-
tion and outreach.

New Faculty

8 University of Florida Department of Physics

I Florida Physic. s Ne

Department Conferences

24th International Conference on
Low Temperature Physics (LT24)
contributed by Professor Gary Ihas

Every three years the international com-
munity of low temperature physicists gathers
in conference to exchange information on their
Uni ofFlorida
latest researches, and to plan for future direc-
tions in research. From August 10 to 17, 2005, the 24th International Con-
ference on Low Temperature Physics (LT24) will be held in Orlando,
Florida, hosted by the University of Florida under the auspices of the
International Union of Pure and Applied Physics. Professor Gary Ihas is
Chairman of the conference, and Professor Mark Meisel is Secretary.
The first conference in this series was held in Cambridge, England
in 1946 and was chaired by Sir Lawrence Bragg. It had three hundred
participants who presented 26 papers. The last conference, LT23, was in
Hiroshima, Japan, and was attended by 1466 participants from 34 coun-
tries that presented 1412 talks and posters.
This is the most important conference in an area of science that has
been the spawning ground for much of our technological economy and
society. Because of the venue, Walt Disney World Resorts, and the tim-
ing, 12 years after the last US conference and during a rapidly growing
period of low temperature research, this will probably be the largest LT
conference ever. A major goal of this conference is to include scientists
from as many countries as possible and at all stages of scientific devel-
opment, and to encourage young scientists in the United States. Alarge
outreach program in the state of Florida is also planned. The most pres-
tigious prize in the field of low temperature research, the London Prize,
will be presented at the meeting. For more information visit:

44th Sanibel Symposium
contributed by Professor Samuel Trickey

The 44th Sanibel Symposium continued two themes sci-
entific excellence and a location different from its name. The
2004 meeting was held at World Golf Village, north of St.
Augustine Florida. The move occurred because the former
site (Ponce de Leon Resort) was dosed and torn down to make
way for residential development. The meeting format also
changed, to 6 days with 17 Invited Talk sessions and 6 Poster
sessions. Invited Talk sessions included such topics as Mo-
lecular Electronics, Nanoscale Phenomena at Surfaces, Den-
sity Functional and Density Matrix Functional Theory,
Multi-scale Chemistry, Quantum Dynamics in both finite and
extended systems, Molecular Spectroscopy in Interstellar
Regions, Thermodynamics of Small Systems, Quantum Me-
chanical Molecular Mechanical Methods and Applications,

Department External Review
The department underwent a self-initiated
external review on November 20&21, 2003. The
External Advisory Committee consisted of five
eminent physicists: Thomas Applequist (chair of
the committee, Professor of Physics and former
Dean, Yale University), Judy Franz (Executive
Officer, American Physical Society), William
Frazer (Emeritus Professor, UC Berkeley, and
former Vice President of the UC system),
Raymond Goldstein (Professor, University of Ari-
zona), and Eric Mazur (Professor of Physics,
Harvard University). Overthe two days the com-
mittee had a frenetic schedule which included
touring the building and facilities, listening to pre-
sentations on research and instructional activi-
ties in the department, meeting with groups of
students, staff, and faculty, and meeting with uni-
versity administrators including CLAS Dean Neil
Sullivan, VP for Research Win Phillips, and Pro-
vost David Colburn. The committee was charged
with reviewing the department's activities and
assessing our strengths and weaknesses, and
providing recommendations for improving our
program and identifying new opportunities. The
committee's report praised many of our pro-
grams, and strongly endorsed our plan of grow-
ing new research programs in experimental
biological physics and particle astrophysics. Sev-
eral concerns were raised, including the level of
fellowship support for ourgraduate students and
the lack of diversity within ourfaculty ranks; both
issues are being actively discussed in the de-
partment. A formal response to the committee's
report will be produced in the fall of 2004.

Metals in Biomolecules, Ion Channels, and Large System
Two tutorial sessions to introduce graduate students to
the topics of the Invited Talk sessions were a popular new
feature. For the third year, the participant survey showed high
satisfaction with the scientific program and speaker selection
(4.1 4.4 on a 1-5 scale with 5 best). First-time attendance by
younger scientists was up and return attendance continued
strong. The Army Research Office, Office of Naval Research,
and IBM Corporation provided external funding.
The Symposium is on the move again. The 45th will take
place March 5 11 at the King and Prince Resort Hotel on St.
Simons Island Georgia. Go to http:www.qtp.ufl.edu and dick
on "Sanibel" in the menu on the left side.

Alumni Newsletter 9

New Magnet Lab Director Named
-CLAS News and Publications

A world-class leader in magnetic
field research is the new director of the
National High Magnetic Field Labora-
tory, which is operated by a consortium
among the University of Florida, Florida
State University and Los Alamos Na-
tional Laboratory in New Mexico. Greg
Boebinger, who has been the director of
the pulsed magnet facility at Los Alamos
since 1998, will head the lab whose cen-
tral headquarters are in Tallahassee. He
succeeds Jack Crow, the founding direc-
tor of the NHMFL, whose vision has led
the facility to break all records in the
field of magnet technology and now
supplies advanced magnets for other
labs around the world. Sadly, Jack Crow
died in September 2004 after an ex-
tended illness, and his presence at the
NHMFL will be sorely missed.
In addition to his administrative
duties, he also will hold faculty appoint-
ments in physics at UF and FSU. A dis-
tinguished experimental condensed
matter scientist, Boebinger completed

Ramond continued from page 4

Nobel Symposium entitled "Neutrino
Physics", sponsored by the Nobel
Foundation, held August 19-24, 2004.
Professor Ramond also attended
two conferences commemorating the
25th anniversary of his work as one of
the four collaborators who proposed
the "see-saw mechanism" in 1979. The
"see-saw mechanism" is the prediction
that neutrinos have masses and that
they are very small compared to that
of their charged partners. The anni-
versary conferences held in France and
Japan, were not only to commemorate
the importance of this finding, but also
assess its place now among the current
research of neutrino masses.

his Ph.D. at the Massachusetts Institute
of Technology in 1986 after earning three
bachelor's degrees in electrical engineer-
ing, philosophy and physics from
Purdue University and completing post-
graduate work at Cambridge University
in England. Before joining Los Alamos,
Boebinger worked as a staff physicist at
Bell Laboratories in Murray Hill, New
Jersey. Since 1995, one of Boebinger's
major collaborators has been Neil
Sullivan, a professor of physics and dean
of UF's College of Liberal Arts and Sci-
ences. Sullivan, along with Crow, is one
of the original architects of the proposal
to bring the NHMFL to Florida and still
serves as the co-principal investigator
representing UF.
In 1989, a consortium of scientists
at UF, FSU, and Los Alamos National
Lab out-competed a number of univer-
sities vying to be the national lab's new
headquarters, then based at the Massa-
chusetts Institute of Technology in Bos-
ton. The new lab opened in 1994 and

through a grant
from the Na-
tional Science
at Innovation -
Park in Talla- / I
hassee, the
NHMFL's cen-
tral headquar-o NHMFL
ters houses the most powerful magnets
ever built. Scientists in various fields use
the extraordinarily high fields as tools
for probing the properties of materials
ranging from superconducting com-
pounds to living tissue. In Gainesville,
the NHMFL operates two facilities, one
that studies the physics of materials at
ultra-low temperatures and high mag-
netic fields, and a second that uses mag-
netic resonance to study biological

UF Welcomes New President

After a long search with over 400
candidates contacted, 11 applicants
interviewed and then narrowed to I
three, the University of Florida Board
of Trustees elected Dr. James Bernard
"Bernie" Machen as the 11th Presi-
dent of the University of Florida on
October 8, 2003. Dr. Machen began
his duties on January 5, 2004 and his
inauguration ceremony was held
September 9-10, 2004.
Prior to arriving at UF, Dr.
Machen served as President of the -
University of Utah. His past experi-
ences include provost and vice-presi-
dent of academic affairs and dean of the School of Dentistry at the University of
To get to know the campus and the people, Dr. Machen made visits to some of
the colleges and departments. Arranged by Professor Dorsey, a forum with Dr.
Machen was held on May 20, 2004. The forum was open to all members of the
department. It was a relaxed, casual meeting where Dr. Machen began a discus-
sion about his plans for the university in the coming years.

10 University of Florida Department of Physics

I Florida Physic. s Ne

Investigating Physics with
contributed by Professor Ho Bun Chan

Micromachines, or
microelectromechanical systems
(MEMS), are small, movable structures
created using integrated circuit technol-
ogy. Processes that fabricate microelec-
tronic chips, such as lithography, etching
and deposition, are used to create mov-
able MEMS components in the um or
nm scale on a semiconductor wafer. The
small size, quick response time, high
sensitivity and low cost of MEMS have
made them a compelling choice for a
variety of applications. For instance,
micromachined sensors are nowadays
widely used in automobiles for detect-
ing acceleration and deploying airbags.
Apart from the obvious commercial
value of MEMS, their high sensitivity
and functionality offer unique capabili-
ties for carrying out fundamental phys-
ics experiments. Dr. Ho Bun Chan's
research group makes use of MEMS to
investigate fundamental interactions
among surfaces in cose proximity in-
cluding Casimir forces and non-contact
friction. Dr. Chan's group also studies
the interaction of MEMS with light: con-
trolling light using MEMS as well as ac-
tuating MEMS with light.
The Casimir force is the attraction
between two neutral metallic surfaces
arising from the changes in the zero
point energy of the electromagnetic
field. When the Casimir force is men-
tioned in physics courses, it is usually
regarded as an interesting but techno-
logically irrelevant corollary of quantum
field theory. Dr. Chan and his collabora-
tors demonstrated that motion of MEMS
device can be created solely based on the
Casimir force. So far, classical mechan-
ics have done a good job in describing
the operation of commercial MEMS de-
vices. Dr. Chan's experiment establishes
the importance of quantum mechanical


effects between MEMS components
when the trend of miniaturization of
MEMS continues. Currently, Dr. Chan's
group is investigating non-conservative
effects between two bodies in relative
motion at the nanoscale. Such dissipa-
tive effects will affect the damping and
reduce the resonance linewidth of mi-
cro-mechanical oscillators.
In microelectronic devices, billions
of transistors are packed into a single
chip. The fabrication of MEMS involves
similar, highly parallel processes, mak-
ing it possible to create arrays of large
number of elements. MEMS optical de-
vices that contain hundreds or even mil-
lions of moving parts have become
important components in telecommuni-
cation networks, adaptive optics and
display devices such as projectors. In
collaboration with Dr. Reitze, Dr. Chan's
group has built a prototype MEMS mi-
cro-mirror array to be used in shaping

ultrafast optical pulses (Figure). This
group is also investigating the interac-
tion between nanomechanical compo-
nents and surface plasmons polaritons.

Figure: Micron-sized movable artificial struc-
tures can be used to control light. This polysilicon
micro-mirror is suspended by serpentine springs.
The mirror is capable of motion perpendicular to
the substrate when a voltage is applied to the
underlying electrode. When actuated, each mir-
ror in the array can be used to change the free
space path length of an incident light beam and
impart variable phase shifts in real time.

Processing, analyzing, transporting
and displaying terabytes of data present
increasingly difficult challenges to fore-
front research in many domains of sci-
ence and engineering. These problems
are particularly acute in such computer-
intensive Physics domains as High En-
ergy Physics, nanostructures, stellar
dynamics and gravitational wave detec-
tion, where University of Florida physi-
cists have strong research programs.
To address these critical challenges,
Physics faculty members, in partnership
with colleagues across the University of
Florida, have embarked on a campus-
wide program (http://www.hcs.ufl.edu/
hpl) to develop high-end computing for
data-intensive research across a broad

spectrum of disciplines. The centerpiece
of this strategy is the creation of a UF
Campus Research Grid linking several
powerful computing clusters to form a
single, large computational resource
that will be accessed by researchers
across the entire campus. At the heart
of the Campus Research Grid is a new
high-performance computing facility in-
tended to provide a powerful baseline
of computation and storage infrastruc-
ture for the grid coupled with high-
speed communications. This facility
will loosely bind existing computing re-
sources across campus and is being con-
structed in three phases, starting in 2004,

continued on page 12

Alumni Newsletter 11

Physics and the University of Florida Campus Grid
contributed by Professor Paul Avery

I *lrd Phs ics New 2004

Grid continuedfrom page 11

with a focus on the physical sciences, en-
gineering sciences, and health sciences,
The Department of Physics is play-
ing a principal role in the creation of the
Campus Research Grid. Phase I (see fig-
ure) is located in the Physics computer
room and two recently hired comput-
ing engineers will work closely with Erik
Deumens of the Quantum Theory
Project and Jorge Rodriguez of High En-
ergy Physics in integrating the hardware
and software systems of the facility with
the other major computing clusters on
campus. The Grid software will take ad-
vantage of the University of Florida's
leadership of two national Grid efforts,
GriPhyN (http://www.griphvn.org/) and
the International Virtual Data Grid
Laboratory (http://www.ivdgl.org/),
both led by Paul Avery.
The Campus Research Grid has tre-
mendous synergy with other major ac-
tivities at the local, state and national
levels that will augment the University's

to Internet2
(via Atlanta

Campus Research Grid @ U. Flo

role in high end computing. Paul Avery
and Sam Trickey were co-principal in-
vestigators of a successful proposal to
the NSF Major Research Initiative (MRI)
program, which will bring $857K of re-
sources to build a state of the art net-
working infrastructure linking the major
computing centers on campus, incud-
ing Physics. This campus network will
be linked to the advance networking in-
frastructures Florida Lambda Rail (FLR)
and National Lambda Rail (NLR),
thanks to $800K in equipment and per-
sonnel provided by the successful
UltraLight proposal to the NSF Informa-
tion Technology Research program
(http://ultralight.caltech.edu/), on which
Paul Avery was the lead UF investiga-
tor. Taken together, these projects will
not only extend UF national leadership
in Grid computing, but they will help
catapult UF into the front ranks of inter-
national ultra-high speed networking,
providing our university for the first
time with a state of the art networking
infrastructure supporting advanced sci-
entific applications.

Lambda Rail
(via Jacksonville)

Level 4
Statewide Grid
(-P- proposed )_, -
Level 3
UF Research Grid O
(Phases I, II, Ill) .

Level 1
Personal Clusters -n

To S. America
(via Miami)

Marking Time to the LHC
contributed by Professor Darin Acosta

Experimenters from the high-en-
ergy physics group are marking time
until the start of the Large Hadron
Collider (LHC) in 2007 at the CERN
laboratory in Geneva, Switzerland. The
LHC will collide protons at an unprec-
edented energy of 14 trillion electron-
volts in order to unravel some basic
mysteries of the universe, such as the
mechanism by which particles acquire
mass and the mechanism that unifies the
known fundamental forces. Circum-
stantial evidence has been gradually ac-
cumulating that a high grand theory
must exist that is able to explain physi-
cal phenomena with fewer ad-hoc pa-
rameters than used in current theories,
and the LHC is our best bet for directly
probing this theory. The LHC also may
shed light on "dark matter", so-far in-
visible yet responsible for 90% of the
mass in the universe according to cos-
mologists, and perhaps even reveal that
we live in a universe with more than 3
spatial dimensions.
The UF researchers participate in an
LHC experiment called the Compact
Muon Solenoid, a misnomer given that
the experiment will stand 15 m tall and
weight over 12,000 tons when com-
pleted. It will also contain the largest
superconducting magnet ever con-
structed in order to measure particle mo-
menta: a 4 Tesla solenoid 12 m long and
6 meters in diameter. The CMS experi-
ment will be installed 100 meters under-
ground at one of the collision points of
the LHC ring, which is 27 kilometers in
One of the ways UF researchers are
marking time is in developing a precise
and stable clock distribution system in
order to synchronize the experiment
electronics to the 40 MHz proton colli-
sion frequency. The research group of
Professor Darin Acosta marked a mile-

12 University of Florida Department of Physics

I loid Pys*cs New. 200

stone in September 2003 by successfully
testing a sophisticated electronic proces-
sor they developed at UF in an experi-
ment using a muon beam at CERN.
Dubbed the "Track-Finder," the proces-
sor collects data transmitted on high-
speed fiber-optic links to reconstruct in
real-time the trajectories of muons in the
Endcap Muon system of the CMS. In
earlier tests, the experiment failed be-
cause the dock distributed by the CERN
particle accelerator had too much jitter
to drive optical links operating at 1.6
GHz without error. The clock is the
heartbeat of a collider experiment: data

must be synchronized to the clock so
that information from one proton colli-
sion is not mixed up with that from an-
other. In the September tests, the UF
group employed a very stable crystal os-
cillator and phase-locked it to the accel-
erator clock. This time the experiment
succeeded, and data was successfully
driven through the entire electronic sys-
tem from the muon chambers to the
Track-Finder at the measured machine
frequency of 40.078893 MHz. The feat
was repeated with even more detectors
and electronics in June 2004 as an even
larger slice of the CMS experiment was

tested. The success of the beam test ex-
periments depended on the efforts of UF
physics graduate students Bobby
Scurlock, Alexei Drozdetski and
Khristian Kotov, as well as physics un-
dergraduates Lindsay Gray and Nicho-
las Park. Post-doctoral research Holger
Stoeck and engineer Alex Madorsky also
were instrumental.
Another way to mark time until the
start of the LHC is to measure the
progress on the installation of the many
detectors that will compose the CMS ex-
periment. Professors Mitselmakher and
Korytov lead the Endcap Muon project
of CMS, which is a system consisting of
over 400 large wire chambers devoted
to detecting muons emanating from the
LHC collision point. Approximately 75
of these chambers were tested in the
High-Bay laboratory of the Physics
Building, but all have now been shipped
to CERN for installation. The CMS team
recently celebrated the installation of 108
chambers onto the 5-story tall iron disks
at CERN, which represents 27% of the
final system. In fact, several of these
chambers have seen the first muons at
CMS after being powered up and detect-
ing cosmic-ray muons originating from
the upper atmosphere.
The construction of CMS and the
LHC is a monumental task, but one
which is well underway. The reward in
3 years hopefully will be deep insight
into the nature of the universe.

gaps m t,.. h,. h. ,. Will ... .. hd W th mt i ,i
detect.,,- t. .,,flq, .t,. ti.. .m -t,illat.,,

Eagerly awaitingg beam test results. From left to right: .
Associate Professor Darin Acosta, Graduate student
Bobby Scurlock, Post Doc Holger Stoeck, and collaborat-
ing engineers Victor Golovtsov and Lev Uvarov (seated).

Alumni Newsletter 13

I *lrd Phs ics New 2004

A Quantum Leap
adapted with permission from Aaron Hoover,
UF News and Publications, by Professor
Stephen Hill
No one knows how to build a quan-
tum computer. But futurists predict that
whoever succeeds will be able to crack
the U.S. military's hardiest codes in a few
minutes, solve currently insurmount-
able problems in physics, meteorology
and astronomy and possibly shrink
computers to microscopic size. So, in a
reprise of the effort to pioneer high tem-
perature superconductors a decade ago,
the race is on. Among the proven com-
petitors at the world's universities and
research institutions: two University of
Florida scientists. Physics Associate Pro-
fessor Stephen Hill and Drago Profes-
sor of Chemistry George Christou say
up front they're nowhere near building
what remains a device rooted partly in
science and partly in science fiction. But,
in a paper published last fall in the jour-
nal Science,' the two demonstrated a
new possibility for the basic mechanism
that could underlie a quantum machine.
Supported by $2 million from the Na-
tional Science Foundation, they're con-
tinuing to pursue that possibility which
they believe may have key advantages
over a handful of other candidates for
the quantum computer's mysterious in-
Today's computers rely on bits of
information stored as magnetic states on
hard drives or in a compact disc's
grooves. These states are represented as
zeros or ones. The quantum computer
would have a radically different foun-
dation: the quantum bit, or qubit. It may
sound bizarre, but the qubit would lead
to vast increases in a computer's process-
ing power. Here's why: Four bits in a
conventional computer can store only
one of 16 different patterns at a time -
0001 at one time, 0011 the next time, then
0111, and so on.. But four qubits, if
achieved, could store all 16 patterns at

the same time. So, while each additional
bit gives a conventional computer just
one more bit of power, each qubit in-
creases the quantum computer's power
Mathematicians have already dem-
onstrated formulae or algorithms that
would use quantum computers to do
remarkable things, Hill says. For ex-
ample, today's state-of-the-art military
codes are immune to conventional com-
puters, which would require centuries
of processing to discover the patterns
needed to crack them. "The joke is that
the codes developed by the Pentagon are
supposedly safe for hundreds of years,
but if someone makes a quantum com-
puter they may only be safe for a few
minutes," Hill says.
Although everyone agrees no one
will build a quantum computer next
year, scientists have already made
progress. In 2001, IBM researchers built
the first "proof of concept" primitive
version of a quantum computer, using
it to break the number 15 into its factors
of five and three. Most researchers since
have concentrated their efforts on the

problem of developing the physical sys-
tem that will serve as the main compu-
tational ingredient in other words, the
quantum computer's processor. It is
presently unknown what this system
will consist of. Some teams are experi-
menting with photons, others with the
spins of atomic nuclei. Still others hope
to tweak the electron spin in a pursuit
known as spintronics.
Hill and Christou are working on
yet another candidate: molecular mag-
nets. Until 1992, no one had observed
magnetism on the molecular scale. That
year, Christou, then at Indiana Univer-
sity in Bloomington, was among a group
of scientists who synthesized the world's
first magnet consisting only of a single
molecule. With an inner core measuring
just one half of a nanometer, or a half of
a billionth of a meter, so-called "Man-
ganese 12" was the smallest magnet then
known to science. Each molecule is too
small to probe by itself. But they form
in crystals, each containing trillions of
identical, ordered, similarly aligned
magnets. By studying the behavior of
manageably large crystals, scientists can

L to R: Jon Lawrence, Stephen Hill, Tony Wilson, Susumu Takahashi,
fi .. g-Chiang Lee, and Norman Anderson.

14 University of Florida Department of Physics

I loid Pys*cs New. 204

deduce the behavior of each molecule.
If Christou's specialty is making the
crystals, Hill's expertise is studying
them. Hill's lab has an elaborate and ex-
pensive setup that boasts some of mod-
ern physics' most powerful instruments,
including a spectrometer, a cryostat and
a powerful magnet. He uses the cryostat
to cool the sample to a few degrees
above absolute zero, a necessity to shel-
ter the delicate quantum system against
heat-related disturbances. He then pow-
ers up and manipulates the magnetic
field to prompt the sample to enter a
quantum state, firing microwaves at it
and studying the return signal with the
state-of-the-art spectrometer. "With just
the right conditions of magnetic field
strength and temperature and magnetic
field orientation, we can coax the sys-
tem into a so-called superposition of
quantum states whereby pairs of mol-
ecules act in unison," Hill says. "The
microwaves are our eyes looking into
the system, while the magnetic field, if
you like, represents our hands." The su-
perposition state is stable for only a few
nanoseconds-just enough time for Hill
and Christou to show, as reported in the
2003 Science paper, that single-molecule
magnets could one day be used in a
quantum computer.
Success may be a long way off, but
no one disputes the importance of this
research. Already, as engineers tap the
last of silicon's remaining potential, the
rapid increases in computing speed that
spurred the information revolution are
slowing down. With modern scientific
progress so closely tied to computing
heft, it's important for acceleration to
continue. "Once we figure out all these
issues with quantum mechanics there
might be another quantum leap," Hill
1 S. Hill, R. S. Edwards, N. Aliaga-
Alcalde, G. Christou, Science 302, 1015-
1018 (Nov 7 2003).

Looking for Particles Left Over From the

Big Bang with the Cryogenic Dark Matter

Search (CDMS) Experiment
contributed by Professor Laura Baudis

We have strong evidence on all cos-
mic scales, from galaxies to the largest
structures ever observed, that there is
more matter in the universe than we can
actually see. Galaxies and clusters
would fly apart unless they would be
held together by material which we call
dark, because it does not emit electro-
magnetic radiation. As early as 1933
Fritz Zwicky had discovered that the
masses of massive galaxy busters are
about ten times larger than the sum of
the luminous mass of their individual
galaxies. However, it was the pioneer-
ing work of Vera Rubin in the 1970s
which provided dynamical evidence
that individual galaxies are embedded
in large, dark halos.
According to the Wilkinson Micro-
wave Anisotropy Probe, or WMAP, a
survey of the microwave background
radiation left over from the big bang,
ordinary ("bary-
onic") matter con-
taining atoms makes
up only 4% of the en-
ergy-matter contents
in the Universe.
"Dark energy"
makes up 73%, and
an unknown form of
dark matter makes
up the last 23%.
Some of the proper-
ties of non-baryonic
dark matter, such as
its density, can be in-
ferred from WMAP, A view of the inne:
with the Sloan Digi- Detector towers are
The coldest part
tal Sky Survey re- thousandths ofa d
cently confirming surrounding layer
these results. We The cryostat is con
know that neutrinos, radioactivity env

very light particles left over from the big
bang in massive quantities, make up a
small amount. WIMPs, or Weakly Inter-
acting Massive Particles, may make up
the rest. WIMPs, which could have been
produced in the very early universe,
may have a mass 10 to 1000 times the
mass of the proton and interact only via
the weak force and gravity. Such par-
ticles are outside the realm of the Stan-
dard Model of particle physics and their
discovery would bring a breakthrough
for theories going beyond the Standard
The CDMS experiment uses germa-
nium and silicon crystals cooled down
to mK temperatures to look for WIMPs

scattering off Ge or Si nuclei. Since dark
matter particles will interact less than
once per day in 1 kilogram of target
material, the detectors have to be care-
continued on page 16

r layers of the cryostat with two towers installed.
mounted in the holes covered by hexagonal plates.
of the cryostat stays at 10 mK (millikelvin, or
egree above absolute zero) during operation. The
s are higher temperature stages of the cryostat.
structed using radiopure copper to provide a low-
ironment for the extremely sensitive CDMS

Alumni Newsletter 15

I lrd Phs ics Nes 20

CDMS continued from page 15

fully shielded from cosmic rays and any
other interactions that would mimic a
WIMP (so-called "background events").
The CDMS team thus practices 'under-
ground astronomy', with the detectors
being located nearly a half-mile below
the earth's surface in a former iron mine
in Soudan, in northern Minnesota.
The power of the detectors resides
in the capability of simultaneously mea-
suring the charge and vibration pro-
duced by particle interactions within the
crystals. WIMPs will signal their pres-
ence by releasing less charge than other
particles for the same amount of vibra-
The current experimental set-up for
CDMS at Soudan contains two towers
of detectors, each with a kilogram of
germanium and 200 g of silicon. While
germanium is heavier and has a higher
probability of seeing a WIMP interac-
tion, silicon is used to distinguish
WIMPs from neutrons, which produce
the same ratio of charge to vibration as
a dark matter particle.
With the first data from the Soudan

observatory, taken with only one tower
from October 2003 to January 2004, the
CDMS team has achieved the world-
wide highest sensitivity on WIMPs.
The CDMS result, described in a
paper accepted by Physical Review Let-
ters (astro-ph/0405033), shows with 90
percent certainty that the interaction rate
of a WIMP with mass 60 GeV must be
less than 4 x 1043 cm2 or about one inter-
action every 25 days per kilogram of ger-
These measurements are at least
four times more sensitive than the best
previous measurement offered by the
EDELWEISS experiment, an under-
ground European experiment near
Grenoble, France.
The team is now analyzing the data
from the two towers taken from Febru-
ary to August 2004, while at the same
time they warmed up the experiment to
include 3 additional towers. They expect
to resume data taking by the end of the
year and to take measurements during
the entire year 2005 before the next
scheduled upgrade.
CDMS includes 48 scientists from
13 institutions, and is supported by

funds from NSF and DoE. The Univer-
sity of Florida is the youngest addition
to the CDMS II collaborating institu-
tions. The UF group, led by Professor
Laura Baudis, is playing a major role in
identifying and reducing the back-
ground sources of CDMS detectors, a
precise detective work to chase down all
types of interactions that may look like
WIMPs, but in fact, are not. The group
is also strongly involved in modeling
these so-called background interactions
with Monte Carlo methods, in the analy-
sis of the WIMP search data and in op-
eration of the experiment at the Soudan
The discovery of Weakly Interacting
Massive Particles would have deep im-
plications for cosmology and particle
physics, solving the double mystery of
dark matter on cosmic scales and on new
particle physics on subatomic scales.

Website of the UF group:
Main CDMS website:

Nanotube Films as Transparent Conducting Materials
contributed by Professor Andrew Rinzler

If not for a handful of materials, the
properties of optical transparency and
good electrical conductivity would be
mutually exclusive. Glasses and plastics
are nicely transparent, but they are gen-
erally electrically insulating. Metals, on
the other hand, while being good elec-
trical conductors, tend to be opaque.
They can be made very thin and thereby
transparent, but most metals oxidize the
depth of the film making for poor con-
ductors and the precious metals, which
don't oxidize, don't like to form contigu-
ous films, so their conductivity when
thin enough to be transparent, is also

poor. This leaves a handful of semicon-
ductors: the transparent conducting ox-
ides (TCOs), like indium tin oxide, to
carry the burden. And a big burden it is
because modern technology depends
heavily on the use of transparent con-
ducting films and the need keeps grow-
ing. Where? Well, in computer laptop
displays, in infrared light emitting di-
odes (LEDs) like in TV remotes and their
photodiode receivers, in the visible
LEDs you see in traffic lights and com-
mercial signs, in each of the Megapixels
of digital cameras, in photocopiers, in
solar cells, and in digital watch displays.

The list goes on. Given this ubiquity the
TCOs are obviously very successful.
Nevertheless there remains considerable
room for improvement. The conductiv-
ity of the TCOs depends critically on
their oxygen doping, which is finicky to
control, and limits their temperature tol-
erance during device fabrication. The
TCOs are brittle, limiting their use to
rigid devices. Finally, most TCOs are n-
type conductors, which limits the range
of materials to which they can electri-
cally couple without the formation of
significant contact barriers.
Now a group of researchers at UF

16 University of Florida Department of Physics

Floria Phy*ics Ne.s 20

has demonstrated that thin films of pure
single walled carbon nanotubes
(SWNTs) can provide transparent con-
ductors having properties complimen-
tary to if not outright competitive with
the TCOs. Fabrication of the films and
application to GaN based light emitting
diodes were first reported in the Jour-
nal Nano Letters.'2 Elaboration of the
film fabrication process and optical and
electronic characterization appeared in
the August 27h issue of Science.3 The
nanotube films are distinguished by
having higher electrical conductivity, for
equal transparency in the mid-IR com-
pared to other known materials; they are
highly flexible, with no degradation in
their opto-electronic properties after re-
peated flexing; and the semiconducting
nanotubes in the mixture of -1/3 metal-
lic, 2/3 semiconducting, tend to be p-
type conductors, although by simple
chemical charge transfer doping (ef-

fected by exposure to vapors of the ap-
propriate chemicals) their carrier con-
centration can be modulated all the way
to n-type. This means that the nanotube
films should permit the coupling of cur-
rent into a broad range of materials.
How do the nanotubes achieve a si-
multaneous high transparency in the
mid IR and good electrical conductiv-
ity? Part of the high transparency is ex-
plained the by the low nanotube carrier
density, which limits their free carrier ab-
sorption. Low carrier density usually
spells poor conductivity however the
remarkably high mobility of the itiner-
ant carriers in the nanotube atomic lat-
tice makes for a good electrical
conductivity, despite the low carrier
density. One further feature contributes
to the high transparency. Optical absorp-
tion is suppressed in the nanotubes for
components of the incident radiation
polarized perpendicular to the nanotube

axis. This was first inferred several years
ago by the UF researchers from polar-
ized Raman spectroscopic data on fibers
of aligned nanotubes4 and subsequently
confirmed by reflectance measurements
on such fibers.5
High magnetic fields will soon be
of relevance in this research. In 2001 Rick
Smalley's group from Rice University
used the high field facilities of the
NHMFL to produce optically dense
films of aligned nanotubes. This mag-
netic field induced alignment is consis-
tent with the present method for
forming the transparent films. Aligned,
transparent nanotube films will be use-
ful both for further scientific exploration
of the one-dimensional character of the
nanotubes themselves and for explora-
tion of the technical limits of the film
transparency to polarized light.

Transparent nanotube films (text lies behind the films) and their microstructure (AFM image, right) *,

1 Z. Chen, X. Du, M-H. Du, C. D. Rancken, H-P. Cheng, A. G. Rinzler, Nano Letters 3 1245 (2003)
2 K. Lee, Z. Wu, Z. Chen, F. Ren, S. J. Pearton, A. G. Rinzler, Nano Lett. 4, 911 (2004)
3 Z. Wu, Z. Chen, X. Du, J. M. Logan, J. Sippel, M. Nikolou, K. Kamaras, J. R. Reynolds, D. B. Tanner, A. F. Hebard, A. G.
Rinzler, Science 305, 1273 (2004)
4 H. H. Gommans, J. W. Alldredge, H. Tashiro, J. Park, J. Magnuson and A. G. Rinzler, J. Appl. Phys. 88, 2509 (2000)
5 J. Hwang, H. H. Gommans, A. Ugawa, H. Tashiro R. Haggenmueller, K. I. Winey, J. E. Fischer, D. B. Tanner, and A. G.
Rinzler, Phys. Rev. B 62, R13310 (2000)
6 D. A. Walters, M. J. Casavant, X. C. Qin, C. B. Huffman, P. J. Boul, L. M. Ericson, E. H. Haroz, M. J. O'Connell, K. Smith,
D. T. Colbert and R. E. Smalley. Chemical Physics Letters, 338, 14-20 (2001)

Alumni Newsletter 17

I lrd Phs ics Nes 20

The Society of Physics Students

Year in Review
- Catherine Yeh, SPS Vice President

The past 2003-2004 year was a pro-
ductive one for the Society of Physics
Students. Prof. Yoonseok Lee proved to
be an involved, enthusiastic sponsor.
Under his guidance and the leadership
of SPS president Colin Shepherd, '04
graduate now headed for UC Santa Bar-
bara, SPS initiated new activities and
strengthened the cub treasury.
The well-attended Research Oppor-
tunities for Undergraduates series of
physics faculty lectures, dubbed
"ROFU" by Prof. Lee, was instituted. UF
physics professors from a variety of
fields donated their evenings to present
their research to an attentive audience
of undergraduate physics majors. In ad-
dition to lectures, SPS scheduled occa-
sional lab tours. Students gawked at
complex apparatuses as professors bliss-

fully described why they wish to levi-
tate plants and smash particles. The
growing number of undergraduate re-
searchers is due partly to ROFU, which
encouraged students to take advantage
of the many research opportunities in
the physics department.
SPS also established UP (Under-
graduate Physics), a monthly under-
graduate physics newsletter run entirely
by students. UP helped to publicize SPS
activities and increase student aware-
ness of events around the department.
Subject matter ranged from student in-
terviews to undergraduate advisor pro-
files to coverage of the SPS verses
Chemistry Club Paintball fight (it ended
in a draw). The newsletter is distributed
to classrooms at the beginning of each
month and published online at
Activities like a month-long rocket

building project with the Girls Club of
Alachua County expanded community
outreach. SPS members arrived each
week at the Girls Club with armfuls of
rocket parts, bracing themselves for the
little girls awaiting them at the door
whose limitless supply of energy seem-
ingly defied the laws of physics. Trans-
formed from students to teachers, the
SPS members were amused to observe
the girls' reactions to failures and tri-
umphs during the construction process.
Despite a few hitches along the way, ev-
eryone was able to complete construc-
tion and experience the satisfaction of
seeing her rocket soar high into the sky
on the day of the launch.
Other SPS successes included the
first meeting of the Female Physics Fo-
rum, at which both undergraduate and
graduate female physics students con-
vened over cookies and punch to hear
new faculty-member Prof. Laura Baudis
discuss her experiences in a field domi-
nated by men. Fundraising efforts
through the sale of solution manuals, a
generous donation by Prof. Gregory
Stewart, and a Marsh White Award from
the National SPS organization approv-
ing a proposal to enhance current "Phys-
ics is Fun" shows reinforced the treasury.
The availability of funds paves the way
for 2004-2005 SPS officers, who will have
a firm footing with which to start the fall

Jacob Tosado sets up the
launch pad at the Girls Club

!'lre --seach in hi l .litab J'i --,.-
research in his lab ,-

Jim Davis, Amruta Deshpande, Tim Jones, and
Jacob Tosado are ready to paintball I3

18 University of Florida Department of Physics

Ir ~
~h ;i
~~ ~.

I Florida-Physics News


Apker Award Finalist

Taylor Hughes (Class of 2003 valedictorian and recipient
of an NSF Graduate Research Fellowship) was selected as a
finalist for the 2003 Apker Award of the APS. The purpose of
the award is to recognize outstanding achievements in phys-
ics by undergraduate students. He was a participant in the
2002 Summer REU program, which resulted in a coauthored
publication [see T. L. Hughes et al., Phys. Rev. Lett. 90, 196802
(2003)]. Jason Alicea (Class of '01) was the winner of the 2002
Apker Award, Chris Schaffer (Class of 1995) won the Apker
Award in 1996 and Chris Harrison (Class of 1993) was a final-
ist in 1994; we clearly have an undergraduate majors program
of which we can be proud.

Outstanding International Student Award
Aparna Baskaran, a third year graduate student work-
ing with Professor Jim Dufty, was one of the 10 CLAS stu-
dents chose to be recognized with a 2004 Outstanding
International Student Academic Award. The awards are de-
signed to recognize undergraduate and graduate students
who not only meet exemplary academic achievement but also
a wide range of accomplishments and contributions, includ-
ing exceptional scholarly research, active participation in the
department, and service to the university community.
Aparna has also received a $1000 travel grant from the
National Science Foundation (NSF) for her presentation at
the IUPAP Statistical Physics meeting in Bangalore, India this
summer. She is one of 15 students to win this award.

Society of Physics Students Leadership

Colin Shepherd has been named as one of the top three
SPS Leadership Scholarship Awardees from the American In-
stitute of Physics. Colin was senior Physics undergraduate
student and has been the President of the UF Chapter of SPS
from 2003-2004. Colin plans to continue on with his gradu-
ate work at the University of California at Santa Barbara.

National Awards garnered by the University of Florida Chap-
ter of the Society of Physics Students:

Marsh W. White Award
Outstanding Chapter
(2002-2003 & 2001-2002)
SPS Leadership Scholarship
(Colin Shepherd top three
finalist, 2003-2004)

2004-2005 National Science Foundation (NSF)
Graduate Fellowships

Three students affiliated with the Department of Physics
have recently been awarded with an NSF Graduate Fellow-
ship and one graduate student has been given an honorary
mention. "NSF Graduate Fellowships offer recognition and
three years of support for advanced study to approximately
900 outstanding graduate students in the mathematical, physi-
cal, biological, engineering, and behavioral and social sci-
ences, including the history of science and the philosophy of
science, and to research-based PhD degrees in science educa-

Robert Abel received his bachelor's degree in Chemistry
from UF and plans to use his fellowship at one of the schools
that has accepted him. (Scripps, UCSD, Columbia or Minne-
Ryan Chancey received his bachelor's degree in Civil
Engineering from UF and is currently attending graduate
school at UF. He will be using his fellowship at Odense in
Desika Narayanan received his bachelor's degree in As-
tronomy and Physics and is currently attending graduate
school at the University of Arizona, Department of Astronomy.
Christopher McKenney received his bachelor's degree
in Physics and Electrical Engineering and is currently attend-
ing graduate school at the University of California at Santa
Barbara. (Honorable Mention)

American Physical Society Chemical Physics
Travel Award

Brian Thorndyke received a "Graduate Travel Award"
from the Division of Chemical Physics of the American Physi-
cal Society. Brian is a graduate research assistant working
with Prof. David Micha of the Quantum Theory Project (QTP).
Brian used his award to attend the 2004 March APS meeting
in Montreal, Canada.
Aditi Mallik also received a "Graduate Travel Award"
from the Division of Chemical Physics of the American Physi-
cal Society. Aditi is a graduate research assistant working
with Prof. James Dufty. She presented a talk at the 2004 March
APS meeting in Montreal, Canada.

Alumni Newsletter 19

I Flrd-hsc es 20

At the 2003 Holiday Celebration on December 11, the Physics Department awarded the yearly
honors to those individuals who have demonstrated and achieved excellence throughout 2003.


Professor Kevin Ingersent was awarded the Teacher of
the Year. This award is voted on by the students and faculty.
He was recognized for his outstanding teaching in the gradu-
ate core courses.


Dmitri Tsybychev is the awardee for The Tom Scott Me-
morial Award which is made annually to a senior graduate
student in experimental physics who has shown distinction
in research. The award honors the memory of Professor Tom
Scott who made significant contributions to the Department
both as a Chair and as a noted researcher. The award carries a
cash prize of $400.


Marc Soussa is the winner for The Charles F. Hooper Jr.
Memorial Award which is made annually to senior graduate
students in physics who have shown distinction in research
and teaching. The Award honors the memory of Professor
Charles (Chuck) Hooper who made seminal contributions to
the Department as a Chair, as a distinguished researcher, and
as a beloved mentor/teacher.

Superior Accomplishment Award Division

One of the five (5) Division Three Superior Accom-
plishment Awards for 2003-2004 has been awarded to
Yvonne Dixon. She is the Office Manager for the High
Energy Theory Group. These awards serve to recognize
individuals for meritorious service beyond their nor-
mally assigned duties.


Each year the College of Liberal Arts & Sciences awards
graduate students with the CLAS Dissertation Award. Two
of these were awarded to Luis Breva-Newell and Sersita
Suzette Pabit.


The Physics department awards two graduate students,
annually, with the Physics Teaching Assistant of the Year for
Laboratory Sessions & Discussion Sessions.
Gregory Martin won for the Discussion Sessions &
Kyoungchul Kong won for the Laboratory Sessions.


This year, two Excellence awards were given, one honor-
ing the secretarial staff, and the other for the engineering and
technical staff.
Cindy Bright, Accountant, was the winner for the secre-
tarial staff and John Graham, Sr. Engineer Tech, of Cryogen-
ics Services was the winner for the engineering & technical

Faculty Name New Promotion Title

Gueak Mitsel make Distnuse Profsso

20 University of Florida Department of Physics

Masters and PhD Theses Listing for 1990 Spring 2004

James K. Blackburn (Detweiler)
PhD: "The spiralling binary system of black holes"

Phillipe B. Chilson (Adams)
MS: "The use of fiber optics in an ultra-low temperature

Meifang Chu (Thorn)
PhD: "Operator methods in the superstring theory"

Christian A. Hagmann (Sullivan)
PhD: "A search for cosmic axions"

Curtis R. Harkless (Nagler)
PhD: "An X-ray scattering study of ordering in block

Erika G. Kisvarsanyi (Sullivan)
MS: "Quantum tunneling of isotopic impurities in solid

Thomas McCarty (Ramond)
PhD: "A collection of theoretical problems in high energy

Howard C. Royce (Ihas)
MS: "Vibrational and structural analysis of a system for
improved cryostat support and operation"

Robert F. Shannon (Nagler)
PhD: "A time-resolved x-ray scattering study of the
ordering kinetics in Cu3Au"

Yuanshan Sun (Wolfle)
PhD: "Matrix method of solution for coupled Boltzmann
equations and its applications to superfluid 3He and

Hyung-Suk Woo (Tanner)
PhD: "Optical properties of segmented and oriented

Dawei Zhou (Sullivan)
PhD: "Quantum tunneling in solid hydrogen"


Eric Q. Feng (Micha)
PhD: "A time-dependent molecular orbital approach to ion-
solid surface collisions"

David P. Kilcrease (Hooper)
PhD: "Higher order microfield effects on spectral line
broadening in dense plasmas"

Gary Kleppe (Ramond)
PhD: "Reparametrization invariant operators in string field

Markus Rall (Sullivan)
PhD: "NMR studies of molecular hydrogen confined to the
pores of zeolite"

Laddawan Ruamsuwan (Fry)
PhD: "Analytical and numerical investigation of nonlinear
gravitational clustering"


Keith D. Bartholomew (Brown)
MS: "Low and high frequency elastic measurements of
quasi-one-dimensional conductors"

Agustin C. Diz (Ohrn)
PhD: "Electron-nuclear dynamics: a theoretical treatment
using coherent states and the time-dependent
variational principle"

Feng Gao (Tanner)
PhD: "Temperature dependence of infrared and optical
properties of high temperature superconductors"

Jung Soo Kim (Stewart)
PhD: "Doping experiments in heavy fermion

Linda K. Lars (Van Rinsvelt)
MS: "Depth profile of trace elements in Fish Lake of
Indiana sediments by particle induced X-ray

Dorte Sasse (Tanner)
MS: "Structural studies of Langmuir-Blodgett films via
FT-IR spectroscopy"

Brian D. Watson (Ramond)
PhD: "Renormalization group analysis of the standard
model and its minimal supersymmetric extension"


Hauku Arason (Ramond)
PhD: "Renormalization group analysis of the standard
model, the minimal supersymmetric extension of the
standard model, and the effective action"

Steven L. Carbon (Thorn)
PhD: "Sister trajectories in string theory"

Diego J. Castano (Ramond)
PhD: "Renormalization group study of the minimal
supersymmetric extension of the standard model
with broken supersymmetry"

Alumni Newsletter 21

I Flrd-hsc es 20

Monique R. Chacon (Zerner)
PhD: "The reduced-expended space method applied to
electronic spectroscopy"

Bettina E. Keszthelyi (Ramond)
PhD: "Gravitational models in 2+1 dimensions with
topological terms and thermo-field dynamics of black

Eric J. Piard (Ramond)
PhD: "Minimal supersymmetry extension of the standard
model of elementary particles: a renormalization
group approach"

Keith Runge (Micha)
PhD: "A time-dependent many-electron approach to atomic
and molecular interactions"

Junqing Zhang (Nagler)
PhD: "High resolution x-ray scattering study of the charge
density waves in quasi-one-dimensional K0.3Mo03"


Dario Beksic (Micha)
PhD: "Electronically diabetic photodesorption of
molecules adsorbed on metal surfaces"

William W. Brey (Andrew)
PhD: "Novel techniques for pulsed gradient NMR

James C. Clark (Ihas)
MS: "Conduction and localization in polyaniline and

George R. Duensing (Andrew)
PhD: "Signal-to-noise ratio improvement in NMR via
receiver hardware optimization"

Morgan D. Evans (Sullivan)
PhD: "Orientational and translational properties of
hydrogen films adsorbed onto boron nitride"

Mark D. Frederickson (Stanton)
MS: "Computer visualization of solid-state phenomena"

Mark W. Grant (Seiberling)
PhD: "Heteroepitaxial dimer structures on the silicon (100)

James A.S. Lee (Klauder)
PhD: "The complex Langevin equation"

Wenhai Ni (Adams)
PhD: "Melting pressure thermometry and magnetically
ordered solid 3He"

Manuel A. Quijada (Tanner)
PhD: "Anisotropy in the infrared, optical and transport
properties of high temperature superconductors"

Jose A. Rubio (Woodard)
PhD: "Reduced Hamiltonians"

Ramchander R. Sastry (Klauder)
MS: "A study of discontinuous perturbations"

Qingbiao Shi (Cumming)
PhD: "The kinetics of surface-mediated phase separation
in the quasi-binary mixture of guaiacol-glycerol-

Phillipe J.-C. Signore (Meisel)
PhD: "Inductive measurements of heavy Fermion

David R. Stark (Tanner)
MS: "Fluctuation effects in the optical conductivity of thin
film BiSrCaCuO"

Chengjun Zhu (Klauder)
PhD: "Singular dynamics in quantum mechanics and
quantum field theory"


Lech S. Borkowski (Hirschfeld)
PhD: "Impurities in unconventional superconductors"

Chad L. Davies (Hunter)
PhD: "Numerical modeling of large N galactic disk

Anuradha Durbha (Sullivan)
MS: "Study of ohmic contacts on gallium nitride thin

Jaewan Kim (Sikivie)
PhD: "Small scale structure on relativistic strings"

Weonwoo Kim (Stewart)
PhD: "Doping experiments on magnetic heavy fermion

Satoru Miyamoto (Takano)
PhD: "Torsion pendulum studies of 4He in nanopores"

Jorge L. Rodriguez (Avery)
PhD: "Exclusive two body decays of the bottom meson"

Wolfgang Tome (Klauder)
PhD: "Quantization and representation independent

Gajendra Tulsian (Klauder)
PhD: "Bicoherent states, path integrals, and systems with

David E. Willmes (Kandrup)
PhD: "The effect of noise in chaotic galactic potentials"

Young-Duck Yoon (Tanner)
PhD: "Optical properties of doped cuprates and related

22 University of Florida Department of Physics

I Florida Physic. s Ne


Ejaz Ahmad (Ipser)
PhD: "The spacetime manifold of a rotating star"

Mark A. Boshart (Seiberling)
PhD: "A channeled ion energy loss study of the surfactant-
mediated growth of Ge on Si(100)"

Matthias H. Hettler (Hirschfeld)
PhD: "Impurities in metals and superconductors"

Kiho Kim (Sullivan)
PhD: "NMR studies of orientational behavior of quantum
solid hydrogen films adsorbed on boron nitride"

Tien Vu Lang (Adams)
PhD: "Direct nuclear demagnetization of high density
body-centered-cubic (BCC) and hexagonal-close-
packed (HCP) solid 3He"

Mirim Lee (Dufty)
PhD: "Uniform shear flow far from equilibrium"

Samuel Mikaelian (Thorn)
PhD: "Phenomenological aspects of the standard model:
high energy QCD, renormalization, and a
supersymmetric extension"

Ma'an N. Raja Al-Ani (Dunnam)
MS: "Effect of nicotinoid compound saturated ring size
upon interaction with nicotinic receptors"


Carsten Blecken (Muttalib)
PhD: "Disordered conductors in a random matrix
formulation and the connection to complex systems"

Edgar B. Genio (Sullivan)
PhD: "Low-temperature nuclear quadrupole resonance
studies of antimony and application of thermometry"

Kaundinya S. Gopinath (Kennedy)
MS: "Relavistic charged particle in dipole-sphere

Donald A. Haynes (Hooper)
PhD: "Analysis of hot dense plasmas and consideration of
Stark broadening theory applied to transitions
involving continuum radiator wave functions"

Michael A. Jones (Fry)
PhD: "Large-scale structure of the universe: simulations
and statistics"

Namkyoung Lee (Obukhov)
PhD: "Conformational properties of polymers"

Hsiang-Lin Liu (Tanner)
PhD: "Effects of high magnetic field and substitutional
doping on optical properties of cuprate

Jianzhong Li (Stanton)
PhD: "Electronic, optical, and transport properties of
widegap II-VI semiconductors"

Paul L. Moyland (Takano)
PhD: "Nuclear magnetism and negative temperatures in

Wenhua X. Ni (Mareci)
PhD: "Design of novel RF coils for signal-to-noise ratio
improvement in NMR"

Nacira Tache (Tanner)
PhD: "Infrared and optical studies of rare earth substitution
in high temperature superconductors"

M. Reza Tayebnejad (Field)
PhD: "Applications of neural networks in high energy


Allison A. Bailes, III (Seiberling)
PhD: "Flat or lumpy: surface structure and growth modes
in silicon-germanium epitaxy"

Garrett E. Granroth (Meisel)
PhD: "Experimental studies
antiferromagnetic chains"

of integer spin

Andrew W. Garrett (Nagler)
PhD: "Low dimensional magnetic exchange in vanadyl
pyrosphosphate and vanadyl hydrogen phosphate

Youli A. Kanev (Field)
PhD: "Application of neural networks and genetic
algorithms in high energy physics"

Andrew E. Rubin (Klauder)
PhD: "The comparative roles of connected and
disconnected trajectories in the evaluation of the
semidassical coherent-state propagator"

Timothy J. Schultz (Sharifi)
MS: Electron beam lithography methods for fabrication
of magnetic nanostructures"

Stephen G. Thomas (Stewart)
PhD: "An investigation of some unusual single crystals of
the heavy fermion superconductor UBE 13"

Zhigang Yi (Micha)
PhD: "Computational aspects of the quantum molecular
dynamics of adsorbates"


Elizabeth L. Bossart (Mareci)
PhD: "Magnetic resonance imaging and spectroscopy for
the study of translation diffusion: applications to
nervous tissue"

Alumni Newsletter 23

I Flrd-hsc es 20

Nikolaos Irges (Ramond)
PhD: "Anomalous U(1) gauge symmetry in superstring
inspired low energy effective theories"

Joseph D. LaVeigne (Tanner)
PhD: "Time resolved infrared spectroscopy at the NSLS
U12IR beamline"

Kingshuk Majumdar (Hershfield)
PhD: "Study of transport properties in magnetic

Sean Moore (Graybeal)
PhD: "Optical properties of lamellar copper oxides with
in-plane magnetic and charged impurities"

Subrahmanyam Pilla (Sullivan)
PhD: "Electric-field induced glass phase in molecular solids
at low temperatures"

Thomas A. Waddington (Monkhorst)
MS: "A feasibility study on the nuclear spin polarization
of 11B for the colliding beam fusion reactor(CBFR)"

Lei Yang (Andrew)
PhD: "Diffusion tensor imaging and the measurement of
diffusion tensors in biological systems"

Jiu Zheng (Yelton)
PhD: "Studies of charmed baryons decaying in lambda_c
(n pi)"


Anatoly Efimov (Reitze)
PhD: "Adaptive control of lasers and their interactions with
matter using femtosecond pulse shaping"

Heather D. Hudspeth (Sharifi)
PhD: "Electron tunneling measurements on
ferromagnetically doped lanthanum manganite

Kirk Hunter (Reitze)
MS: "The physical basis for optical functional imaging:
detecting intrinsic optical signals in vivo using optical
coherent tomography"

Gwyneth C.A. Junkel-Vives (Hooper)
PhD: "Second-order, full Coloumb electron broadening
calculations for multi-electron radiators in hot, dense
plasmas: a focus on dense plasma line shifts"

Naoki Matsunaga (Adams)
PhD: "Magnetic susceptibility and pressure measurements
in helium-three nano-clusters"

Eric O'Neill (Kandrup)
PhD: "Hamiltonian structure and stability of relativistic
gravitational theories"

Bruce C. Paul (Ingersent)
PhD: "A study of a three-impurity kondo model"

Teparksorn Pengpan (Ramond)
PhD: "Equal rank embedding and its related construction
to superconformal field theories"

Artan Qerushi (Monkhorst)
PhD: "Particles and energy transport in a field reversed

Antonio I. Rubiera (Yelton)
PhD: "Exclusive measurements in B --> D* N N X"

Brian C. Watson (Meisel)
PhD: "Quantum transitions in antiferromagnets and liquid


Anatol Blass (Ohrn)
PhD: "Quasiclassical and semiclassical methods in
molecular scattering dynamics"

Vladimir Boychev (Tanner)
PhD: "Far-infrared studies of superconducting thin films
and Fabry-Perot resonators made of such films"

Tat-Sang Choy (Hershfield)
PhD: "Electron transport theory in magnetic

Thomas Delker (Reitze)
PhD: "Demonstration of a prototype dual-recycled cavity-
enhanced Michelson interferometer for gravitational
wave detection"

Stephanie A. Getty (Hebard)
PhD: "Electron transport studies of the ferromagnetic
semiconductor calcium hexaboride"

Mark A. Gunderson (Hooper)
PhD: "Strong collisions in the electron broadening of
spectral lines from charged radiators in hot, dense

Richard M. Haas (Field)
PhD: "The underlying event in hard scattering collisions
of proton and antiproton at 1.8 TEV"

Quentin M. Hudspeth (Hebard)
PhD: "Characterization of two-carbon-sixty systems:
electron-doped carbon-sixty monolayers on thin-film
metal underlayers, and composite films of carbon-
sixty and nickel."

Jungseek Hwang (Tanner)
PhD: "Electrochemical spectroscopy of conjugated

24 University of Florida Department of Physics

I Florida-Physics News

Kevin J. Kless (Adams)
MS: "Magnetic susceptibility and melting in helium-three

Mark D. Moores (Reitze)
PhD: "Adaptive control of the propagation of ultrafast light
through random and nonlinear media"

Steven E. Patamia (Kumar)
PhD: "Spectrum and properties of mesoscopic surface-
coupled phonons in rectangular wires"

Richard Pietri (Andraka)
PhD: "Magnetism and the Kondo effect in cerium heavy-
fermion compounds cerium-aluminum-3 and

Ilya V. Pogorelov (Kandrup)
PhD: "Phase space transport and the continuum limit in
nonlinear Hamiltonian systems"

Craig P. Prescott (Yelton)
PhD: "Search for mixing in the neutral D meson system
with decays into CP even eigenstates"

Alexei N. Safonov (Korytov)
PhD: "Jet fragmentation and predictions of the resumed
perturbative QCD"


Rupal S. Amin (Tanner)
MS: "A technique for passively compensating thermally
induced modal distortions in faraday isolators for
gravitational wave detector input optics"

Brian D. Baker (Detweiler)
PhD: "Variational principles in general relativity"

Kevin T. McCarthy (Hebard)
PhD: "Magnetocapacitance: a probe of spin dependent

Nikoleta Theodoropoulou (Hebard)
PhD: "Experimental studies of spin dependent phenomena
in Giant Magnetoresistance (GMR) and Dilute
Magnetic Semiconductor (DMS) systems"

Xiaozhen Xiong (Ramond)
PhD: "Noncommutative scalar field theories, solitons and


Zhihong Chen (Rinzler)
PhD: "Electron field induced transparency modulation in
single wall carbon nanotube ultra-thin films and a
method to separate metallic and semi-conducting

Mao-Hua Du (Cheng)
PhD: "Theoretical modeling and design of complex

Alexios Klironomos (Dorsey)
PhD: "Structural transitions of the vortex lattice in
anisotropic superconductors and fingering instability
of electron droplets in an inhomogenous magnetic

Frank C. McDonald, Jr (Takano)
MS: "Specific heat measurements of copper benzoate"

Eirini Messaritaki (Detweiler)
PhD: "Radiation reaction on moving particles in general

Vakif K. Onemli (Sikivie)
PhD: "Gravitational lensing by dark matter caustics"

Linlin Qiu (Hagen)
PhD: "Laser induced temperature jump investigations of
fast protein folding dynamics"


Thomas Henderson (Bartlett)
PhD: "Short-range correlation in molecular physics: The
basis set problem and the correlation hole"

Rongliang Liu (Stanton)
PhD: "Theoretical studies of coherent optic and acoustic
phonons in GaN/InGaN heterostructures"

Corneliu Manescu (Krause)
PhD: "Controlling and probing atoms and molecules with
ultrafast laser pulses"

Suzette A. Pabit (Hagen)
PhD: "Fast dynamics in protein folding: Time-resolved
fluorescence and absorbance studies of polypeptide

Bryan Thorndyke (Micha)
PhD: "Quantum dynamics of finite atomic and molecular
systems through density matrix methods"

Dmitri Tsybychev (Acosta)
PhD: "Search for first-generation leptoquarks in the jets and
missing transverse energy topology in proton-
antiproton collisions at center-of-mass energy 1.96

Linlin Wang (Cheng)
PhD: "Density functional study of adsorption of fullerenes
on metal (111) surfaces"

Jeffrey M. Wrighton (Hooper/Dufty)
PhD: "Correlation and collective effects in dense plasma

Alumni Newsletter 25


Alumnus Pledge

Alumnus Dr. J. Michael Harris
(Class of '82) has generously pledged
$12,000 in support of graduate educa-
tion in theoretical physics. Mike, a
Sarasota internist in private practice,
has a deep interest in particle physics
and cosmology.
In August 2004 he attended a three
day conference entitled "Einstein: A
Celebration", at the Aspen Institute.
The speaker list for the conference was
diverse, from Nobel Laureate Murray
Gell-Mann to novelist E. L. Doctor to
our own Professor Pierre Ramond who
was an invited panelist.
Mike reports that "my visit to As-
pen has reassured me that an underly-
ing non-random theory is possible (not
everyone believes this, it seems). I am
just glad to be a part of a group who is
willing to pursue the answers. That is
the purpose of my investment."

Physics Graduate Elected To Distinguished Academy

Professor Murray S. Daw received his Bachelors of Sci-
ence degree in physics from the University of Florida in 1976
and his PhD from the California Institute of Technology in
1981. He is currently the R.A. Bowen Professor of Physics at
Clemson University where he has been since 1994.
Professor Daw has recently been elected to the Ameri-
can Academy of National Arts and Sciences. Daw shares
this distinction with some of the world's most influential
minds, including Benjamin Franklin, Albert Einstein and
Winston Churchill. Photo cortesy ofP Daw
Founded in 1780, the academy brings together scholars and leaders in every
field of arts and sciences. The goal is to stimulate progress in international secu-
rity, social policy, education and the humanities. Professor Daw joins 150 Nobel
laureates and 50 pulitzer prize winners who are among the 4500 academy mem-
Professor Daw uses theoretical physics to understand what makes metals
strong to help make them stronger. His work, funded by NASA the Department
of Energy and the National Science Foundation, could lead to new metal alloys
capable of enduring extreme stress and temperatures. Applications of his work
include components of power-generating turbines and future generations of space


adapted with permission from Emily Keller,
Clemson University News Service !l .'j ./. 1 ...i ,in]

Mat are they doing0now?

This is a
Penny Haskins PhD
President, Radiation Technologies, Inc.
Associate Director, Florida Space Grant

Simon Phillpot PhD
Professor of Materials Science and
Engineering, Univ. of Florida

What are you doing?

Keep in touch with Physics. Visit our online
survey and we'll post your message on the
web and in the next issue of the Florida
Physics News. Send a note and/or pictures to:

Florida Physics News
Department of Physics
University of Florida
P.O. Box 118440
Gainesville, FL 32611

Email: physicsnews@phys.ufl.edu
Alumni Survey:
],rt!,. I.,h ,,tl ,_ ,.h "1,h ,,',,, /

sample of some of our current entries on the UF Physics Alumni online survey!
Elaine Hunter BS
Field Safety Specialist with Fred Meyer Stores

Leon W Couch III BS
Assistant Professor of Music, Texas A&M
Recently earned his Doctorate of Musical Arts
(DMA) and PhD from the Conservatory of Music in

Dohn A. Arms BS
Assistant Physicist, Adv. Photon Source at
Argonne National Laboratory
"I had a great time working with Liz Seiberling and
Yasu Takano as an undergraduate."


Jorge Rodriguez PhD
Assistant Scientist with GriPhyN, Physics,
Univ. of Florida

Benjamin Stillwell BS
Technician at the Advanced Photon Source/
Argonne National Lab and a graduate
student at Northern Illinois University
"Thank you Dr. Adams and Dr. Ihas for being such
great mentors."

Chris Wickersham BS
Software Engineer, CopperKey Technologies


Jungseek Hwang PhD
Research Associate, Department of Physics and
Astronomy, McMaster University

26 University of Florida Department of Physics

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PO BOX 118440
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