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Group Title: PROTON
Title: PROTON ; vol. 6 no. 6
Full Citation
Permanent Link: http://ufdc.ufl.edu/UF00086455/00006
 Material Information
Title: PROTON ; vol. 6 no. 6
Series Title: PROTON
Physical Description: Serial
Language: English
Creator: College of Liberal Arts and Sciences, University of Florida
Publisher: University of Florida
Publication Date: August 2007
 Record Information
Bibliographic ID: UF00086455
Volume ID: VID00006
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.


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Table of Contents
    Faculty news
        Page 1
        Page 2
    Student news
        Page 3
    Staff news
        Page 4
Full Text



L New Professor receives
'Young Physicist' Prize
Professor Ivan Furic ne ,
to the F'h~si cs. DIepartment is one of
t lrree ripients. of te -100- i oung
P 'h.siCicist F'rize a .arcied b) the
High Energy, and 'Particle P'hysii s
C iI s.on of the European F'hysical Societl The
announcement can be found at
hill el-s.-hel-, e .: rn .:h el-s..hel-p .:.Iher-rinze-a. ar.;3 p1hp
The citation reads 2007 I Fi iric -: '-omez-Ceballos.
and S P.lenzemer For outstanding contributions
displaying indi dual create ity and collaborati e effort to
the complex. analysis. whichh pro ided the first
measurement of the frequency of E.s OsCillation
Congratulations I an'

Physics Professor is quoted
in NY Times

Jacobo Konigsberg ,as
quoted in a IJuly 2-I- lie ,
i ork Timeis store about
the race among
,physiCists to understand
a legendary, particle that
is kno n colloquially, as
the Higgs boson and
sometimes called the ',od particle

lie i ork Times -rticle
http tin)'url com/2 I ,Z'

SPhysics Professor talks to Nature about the
Casimir Force

Professor Ho Bun Chan as recentlIy hihlighted n le ,s Feature in I nature
Feel the Force I nature vol 447 pp 77, -775 14 lJune `001 Please s.it
hIttp //tin)url comll-. hmm- to read the full article

Physicists: Quantum dance draws unexpected guests
':OurCe ULF le-r htp ne- L uil edu ; 'L' i' i 4u3nfum -d3nce -p3rr
It ,as al ,ays thought to be restricted to e er,'dad' t['pes ith no magnet sorts allo ,ed in the door
E.ut the quantum dance part, s guest list just got bigger In a paper that appeared Frida, in the online
edition of F'Physical Re ie Letters Ini ersit, of Florida physicists report that contrary, to e pectations
- electrons in magnetic metals e. hibit the same quantum tendencies as. their counterparts in ordinary
metals at extremely 10 temperatures Rather than acting like particles that mo e independently of each
other they beha e a. ,. e. influencing each others paths, and trajectories

The effect i. a bit like a roomful of dancers performing arm-in-arm a frenetic set piece The electrons
push and pull each other around then return to the spot ,here they started off as though completing a
choreographed finale Call it the a e They, mo e around and ha e these elastic collisions and
then they' remember they, are ,a es and the, end up back in the same place they, started said Art
Hebard a _IF professor of phasis and one of four co-authors of the paper

It is an accepted fact in condensed matter physics the branch of phsics that studies the physical
properties of matter that electrons in ordinary metals can act as ,a es This beha ior is seen at
extremely, 10 temperatures. of hundreds of degrees belo zero ,hen random collisions are reduced to
a minimum iDuantum refers to the electrons schizophrenic ability to beha e both as the independent
particles they, are and as ,. es ,ith each electron s ripple affecting those of neighboring electrons
and ice ersa
ii -e Dance pace -1

Depr.en of 01.ics PO Bo .140 *0.erit of Flria *0.evile *lrd21
.(P) 35-9202 (F 35-9202 *esis ews -y.uf 0 h-p/wwpy .uf~d

Fall 2007

Friday @ 4:00pn in
Room 2165 NPB

Condensed Matter
Monday @ 4:05pm in
Room 2165 NPB

High Energy Physics
Tuesday @ 2:00pm
and Fridays @ 2:00pm
in Room 2165 NPB

Physics Colloquium
Thursday @ 4:05 in
Room 1002 NPB

Quantum Theory
Wednesday @ 4:05pm
in Room 2205 NPB

"lan CDorse, Chair
Pam Marlin

college of
Liberal arts a sciences
Ifti' F tie. f it.- I,.,r Hlii C,..,,r Nai nr',



NASA Administrator Names
Ryschkewitsch as New
Chief Engineer*
WASHINGTON, July 17, 2007 /PRNewswire-USNewswire via
COMTEX/-- NASA Administrator Michael Griffin has named
Michael Ryschkewitsch as the agency's chief engineer. He
succeeds Christopher Scolese, who Griffin selected as NASA's
associate administrator on July 11. As chief engineer,
Ryschkewitsch is responsible for the overall review and technical
readiness of all NASA programs. The Office of the Chief Engineer
assures that the agency's development efforts and missions
operations are being planned and conducted on a sound
engineering basis with proper controls and management of
technical risks. Since October 2005, Ryschkewitsch served as the
deputy center director for NASA's Goddard Space Flight Center in
Greenbelt, Md. Previously, he was director of the Applied
Engineering and Technology directorate at Goddard. He joined
the center in 1982 as a cryogenics engineer to work on the
Cosmic Background Explorer mission. Between those jobs,
Ryschkewitsch held several management positions and
supported projects from the first servicing mission of the Hubble
Space Telescope in 1993 to the Aeronomy of Ice in the
Mesosphere mission launched in April 2007.

*Ryschkewitsch earned his bachelor's degree in Physics from the
University of Florida, Gainesville, in 1973 and a doctorate from
Duke University, Durham, NC, in 1978. He has received
numerous group achievement awards throughout his career.
Ryschkewitsch was awarded the NASA Exceptional Service
Medal, the NASA Medal for Outstanding Leadership, the Robert
Baumann Award for contributions to mission success, and the
NASA Engineering and Safety Center Leadership Award.

Recent Publications
Colossal magnetocapacitance and scale-invariant dielectric
response in phase-separated manganites, Ryan P. Rairigh,
Guneeta Singh-Bhalla, Sefaatin Tongay, Tara Dhakal, Amlan
Biswas & Arthur F. Hebard.
Published online: Nature Physics, May 27, 2007

Students Tour
Microkelvin Lab as part of
UF's 'Science Quest'

"Science Quest at the University of Florida
immerses students in various science
disciplines to stimulate interest and
appreciation for the range of college and career
opportunities available in science. The selected
students are rising 10th graders with an
interest in science and are motivated and high
achieving in the classroom. Students live in a
campus dorm for one week, attend a variety of
lectures and demonstrations, visit research
laboratories and other facilities, and perform
science experiments." says Julie Bokor,
Coordinator of the University of Florida Center
for Precollegiate Education and Training.

John Mocko of the Physics Demonstration
Lab, and Charles Parks, Supervisor of
Undergraduate Lab in Physics, met with 24
participants on Wednesday, July 18. A "physics
is fun" show was performed, and Robert
DeSerio, Director of Undergraduate Labs in
Physics, gave them a tour of the
introductory teaching labs and the advanced
undergraduate labs. The students participated
in an activity where they built air guns, and
then toured the Microkelvin Lab.

Physics Faut Prmtos

Art Hebard, Darin Acosta,
Distinguished Full
Professor Professor

Yoonseok Konstantin
Lee, Matchev,
Associate Associate
Professor Professor

Guido Robert
Mueller, DeSerio,
Associate Senior
Professor Associate In


STUDENT NEWS Summer 2007 Exams

Welcome Back
There will be a Graduate
Student Meeting August 30th
at 4:00 in room 1002 NPB.
This meeting is for everyone,
not just new students. The
new students will meet
individually with the Graduate
Coordinator the week before

Preliminary Exams for Fall 2007:
Tuesday, August 21, 2007
o Part A: 9am to 12pm
o Part B: 2pm to 5pm
Wednesday, August 22, 2007
o Part C: 9am to 12pm
o Part D: 2pm to 5pm

Please meet in 1213 NPB about 15 minutes prior to
the starting time of the examination. Please bring
pencils, calculators, and standard math tables (if
you think you will need them). If you have any
questions, please contact Prof. Khandker Muttalib
muttalib@phys.ufl.edu -- 352-392-6699. Results of
the Prelim Exam are expected to be known shortly
thereafter. Previous Preliminary Exams can be
found at: http://tinyurl.com/2p5umz

SDates to Remember
August 21-22 Registration
August 23 Classes Begin
August 23-24/27-29 Drop/Add

Deepak Kar, physics student, attended two
summer schools over the summer. One at the
CERN/Fermilab Hadron Collider
http://hcpss.web.cern.ch/hcpss/ and one at
Princeton http://www.admin.ias.edu/pitpl
The latter was paid with the Physics
Department graduate student travel award.
The above photo of the Nataraja Statue was
taken at CERN by Deepak.

July 17, Pablo Perez "Noise in the Gene
Expression of the Quorum-Sensing Mechanism of
the V. fischeri Marine Bacterium" Chair, Prof Hagen

May 22, Jian Qiu "Renormalization of Gauge Fields
on the Light Cone World Sheet" Chair, Prof Thorn

June 13, Gheorghe Lungu "Measurement of the
Mass of the Top Quark in the All Hadronic Channel at
the Tevatron" Chair, Prof Konigsberg

July 27, Larry Price "Developments in the
Perturbation Theory of Algebraically Special Space-
times" Chair, Prof Whiting

August 6, Haidong Zhang "Time-Resolved Infrared
Spectroscopy of Magnetic Semiconductors and
Superconductors" Chair, Prof. Tanner,
Co-Chair, Prof. Stanton

August 7, Wan Wu "Instrumentation of the Next Gen-
eration Gravitational Wave Detector -
Triple Pendulum Suspension and Electro-Optical
Modulator" Chair, Prof Tanner Co-Chair, Prof Reitze

Dr. Mao-Hua Du, former student of Professor
Hai-Ping Cheng, who graduated in December 2004,
has moved to Oak Ridge National Laboratory. He
has accepted a job offer as a staff scientist in a
condensed matter/materials theory group.

Prof. Cheng's current postdoc, Dr. Yao, has
accepted a job offer as a full Professor of physics at
Yunnan University in a beautiful city in southwest
China, see http://www.ynu.edu.cn/english/.
S Dr. Yao will be leaving at the end of August.

The UF College of Education is looking for one or two graduate
students to assist with a project entitled "Let's Talk Science",
funded by the Florida Department of Education. The positions
1. Content Reviewer (Fall 2007): The Content Reviewer will be
responsible for reviewing a content exam and 9 teacher training
modules for content accuracy. This position will require
approximately 30 hours over the course of the semester.
Compensation: $1000.
2. "Ask the Scientist" (Fall 2007 and/or Spring 2008): The "Ask
the Scientist" will be responsible for addressing teacher questions
about science content through an online interface similar to an
"Ask Jeeves" format. This position will require approximately 2
hours/week for the duration of the semester. Compensation:
$1000. Please contact: Michelle Klosterman klosteml@ufl.edu
Please note: like any other paid activities while you are a GA, TA, or RA
in the Department of Physics, you will need to file the appropriate paper-
work for the "Disclosure of Outside Activies", and Nathan Williams has
the forms that need to be completed.

Page 3


DANCE con't from Page 1
Physicists had long suspected that electrons in magnetic metals would not share this trait, since magnetic fields would
interfere or, in Hebard's words, "scramble up" the peaks and troughs in the waves. Add the magnetic field, they
thought, and it would be like Judas Priest crashing a waltz. All the dancers would scatter. But Hebard and the other
scientists found to their surprise that the dancing electrons in magnetic iron kept up their routines, seemingly oblivious to
the change in atmospherics. With the aid of a one-of-a-kind apparatus called Sample Handling in Vacuum, or SHIVA,
they grew extremely thin films of iron films thousands of times thinner than a human hair. The stainless steel
apparatus maintains an ultra high vacuum to guard against humid air, which would cause them to rust immediately and
become useless. The physicists relied on such thin films because they could observe the quantum effects much more
easily in near two-dimensional samples, rather than the three dimensions that would come with thicker samples.

The scientists then wielded multiple mechanical arms within the $180,000 machine -the SHIVA name is intentionally
reminiscent of the many-armed Indian god -to transfer the films to a test chamber. There, at a temperature of minus
452 degrees Fahrenheit, they submitted the films to tests, including applying magnetic fields as strong as 140,000 times
the earth's magnetic field. The end result: The physicists observed a "signature response" as electrical currents flowed
through the films, giving away the fact that the electrons were doing the quantum dance. "What I find most remarkable
about this work is that it shows that electrons do not really have one-to-one encounters," said Dmitrii Maslov, a UF
professor of physics. "The 'collective' versus 'one-to-one' interactions are now being seen in many materials of practical
interest, and Prof. Hebard's study gives an important contribution to this emerging field." Hebard said physicists believe
the electrons in the magnetic iron continue to act like waves because of the presence of magnetic interactions that
previously were not considered relevant.

The findings have no immediate practical application. But with computer chips and other modern electronics based on
thin metals and how they interact, that could change in the future. "We're asking fundamental questions about magnets,"
Hebard said. "And magnetic materials are used in many applications." The lead author of the Physical Review Letters
paper is Partha Mitra, who performed the experimental research as a doctoral student at UF and who is now a
postdoctoral associate at The Pennsylvania State University. The other authors are UF doctoral student Rajiv Misra,
Khandker Muttalib, a UF faculty member in theoretical physics, and Peter Wolfle, also a theoretical physicist, of the
Universitat Karlsruhe in Germany.


Moving On... Dee Dee Carver, Office
Manager with High Energy Physics for six years,
has taken a new position as Senior Grants
Specialist in Proposal Processing and Dori
Faust, Program Assistant with Low Temperature
Physics for eight years, has started a new
position with the College of Journalism. They
will be missed and we wish them the best for
the future.

Several Physics staff were recognized at the Staff Recognition
Ceremony in Spring 2006 for years of service:
Cindy Bright, 25 years, Accountant
Yvonne Dixon, 30 years, Office Manager
Debra Folks, 25 years, Senior Fiscal Assistant
Larry Frederick, 30 years, Engineer
John Graham, 5 years, Senior Engineering Tech
Carolyn Grider, 5 years, Senior Fiscal Assistant
David Hansen, 5 years, Senior Computer Systems Programmer
Ivan Kravchenko, 10 years, Engineer
Naoto Masuhara, 10 years, Senior Engineer

Employment Opportunities

The Department of Chemistry and Physics seeks a physicist
for either a visiting assistant professor or a visiting instructor
position for the 2007-08 academic year. This is a teaching
position for the period from August 13, 2007 through May 8,
2008. The person in this position is expected to teach two
lecture classes and two laboratory classes in physics each
semester. A Ph.D. in an area of physics is required for a
visiting assistant professor; a masters degree in physics is
required for a visiting instructor. For further information about
this position, please, contact Dennis L. Gay, Chair,
Department of Chemistry and Physics by telephone (904)
620-1941 or email dgay@unf.edu.

A 10-month, Full-Time, Temporary Instructor Position is
available at Valdosta State University in Science
Education to be filled immediately for the 2007-2008
academic year. The courses required would be entry-level
Physical Science and Science Education courses, and the
teaching load would be five, 3-semester hour courses, or
15 contact hours per semester. A Master's Degree in
Physics, Chemistry, or Astronomy is required. Please
contact Edward Chatelain, Head Department of Physics,
Astronomy, and Geosciences Valdosta State University

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th faut an stff Anon is inie to sumi maera to be prite in th pulcain Sumsin fo th PROTO shol to*
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Page 4

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