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News:

• Aug 8, 2011 Ptychography imaging of GdFe magnetic domains paper is published in PNAS. PR appears in UCSD News, Popular Science Magazine, MSNBC, MRS Science News, Photonics Online and other sources.
• May 4, 2011 Samuel Stanwyck receiving the 2010-2011 John Holmes Malmberg Prize. Sam is enrolled in PhD program at Stanford.
• May 4, 2011 Charles Neill receiving the 2010-2011 Shang-Keng Ma Award. Charles is enrolled in PhD program at UC Santa Barbara.
• April 25, 2011 Veronica Burnett becomes AIP's Intern of the Year for 2010-2011 in Roger Revelle College. An article is written about her achievement on the USRA website.
• March 21-25, 2011 Edwin Fohtung, Ash Tripathi, Yeling Dai, and Sebastian Dietze give contributed talks at APS March meeting
• November 8, 2010 Postdoc Edwin Fohtung joins the group.
• October 25, 2010 Undergraduate Researchers Sam Stanwyck, Charles Neill and Andrew McLeod among five physics recepients 2010 Dean's Excellence Award.
• September 28, 2010 Manuscript "Self-consistent interpretation of the 2D structure of the liquid AuSi surface: Bending rigidity and the Debye-Waller effect" is accepted for publication in Physical Review Letters.
• September 19, 2010 Sebastian Dietze attends MML-2010 conference in Berkeley.
• September 15, 2010 Mike Folkerts joins UCSD Physics PhD program
• July 16, 2010 Yeling Dai is the winner of the best poster award at SXNS-11. Congrats, Yeling!
• July 14, 2010 Graduate Student Yeling Dai attends SXNS-11, The Eleventh International Conference on Surface X-ray and Neutron Scattering in Chicago, IL, and makes a contributed presentation.
• June, 2010 Graduate student Leandra Boucheron joins the group. Welcome, Leandra!
• June 8, 2010 Graduate Student Ash Tripathi attends Coherence-2010, International Workshop on Phase Retrieval and Coherent Scattering Coherence in Rostock, Germany; Ash is also invited to give talks at University College London, UK and Technical University Berlin, Germany. Congrats, Ash!
• June 1, 2010 Undergraduate Student Sam Stanwyck receives a prestigious DOE's Science Undergraduate Laboratory Internship SULI at Lawrence Berkeley National Laboratory. Congrats to Sam!
• April 2010 Undergraduate Student Michael Folkerts selected as 2009-2010 receipient of UCSD McNair Scholar award. Congrats, Mike!
• March 15-19, 2010 Ash Tripathi, Yeling Dai, Sebastian Dietze, Michael Folkerts and Sam Stanwyck give contributed talks at APS March meeting
• March, 2010 Graduate Students Jong Woo Kim and Moses Marsh join the group. Welcome!
• March 1, 2010 Oleg receives NSF CAREER Award

• More News

Group Members

Group Photo, Aug 17, 2011, (l-to-r): Oleg Shpyrko, Moses Marsh, Sebastian Dietze, Ash Tripathi, Alisa Agafonova, Jacob Stanley, Gurleen Bal, Yeling Dai, Leandra Boucheron, Brandon Stevenson, Jong Woo Kim, Edwin Fohtung

Principal Investigator:

Prof. Oleg Shpyrko

Oleg Shpyrko Assistant Professor, Department of Physics University of California San Diego Ph.D. 2004, Physics, Harvard University Research Group Webpage: oleg.ucsd.edu Ph.D. Physics, Harvard University, 2004 Office: Mayer Hall 3210 (Where is it?) Phone (Google Voice, preferred): 858-952-1248 Phone (Office): 858-534-3066

Postdoctoral fellow(s):

Dr. Edwin Fohtung

Dr. Edwin Fohtung, Postdoctoral Fellow B.Sc. Technical Physics, Minor - Physical Electronics, St Petersburg State Technical University, Russia 2005 M.Sc. Technical Physics , Minor - Physical Electronics, 2007 Ph.D. Physics\Material Science, University of Freiburg, Germany 2010 Research Topic: Combination of first-principles, semi-empirical techniques and novel coherent x-ray imaging techniques to study the fundamental physics of novel materials with potential technological importance.

Graduate Students:

Ash Tripathi	Ash Tripathi, Graduate Student B.S. Electrical Engineering, U. Illinois Urbana-Champaign 2005 M.S. Physics, UC San Diego 2007 Research Topic: Novel coherent x-ray imaging techniques, ptychographic iterative engine, lens-less imaging. Nanodiffraction studies of metal-insulator transition.
Yeling Dai	Yeling Dai, Graduate Student B.S. Physics, The University of Science and Technology of China, 2006 Research Topic: Dynamics of nanoconfined materials, Liquid Surface Scattering.
Sebastian Dietze	Sebastian Dietze, Graduate Student B.S. Physics, U Texas Austin 2008 Research Topic: Magnetic nanostructures.
Moses Marsh	Moses Marsh, Graduate Student B.S. Physics, Univ. of California Santa Barbara 2009 Research Topic: Superconductivity and Correlated Electron Systems
Jong Woo Kim	Jong Woo Kim, MSE Graduate Student 2009-present M. Sc. Seoul National University Research Topic: Superconductivity and Correlated Electron Systems
Leandra Boucheron	Leandra Boucheron, Graduate Student 2010-present B.S. Physics, New Mexico Tech 2010 Research Topic: Soft Matter and Liquid Surface Scattering
Jacob Stanley	Jacob Stanley, Graduate Student 2008-present B.S Physics and B.S. Math, UC Santa Cruz 2007. M.S. Physics, UC San Diego 2009. Research Topic: Fresnel Coherent Diffractive Imaging
	Veronica Burnett
Alisa Agafonova	Alisa Agafonova

Undergraduate Students:

	Gurleen Bal
Brandon Stevenson	Brandon Stevenson, Undergraduate Student 2006-2010 B.S. Physics, UC San Diego 2010 Research Topic: Fresnel Coherent Diffractive Imaging

Group Alumni:

	Sam Stanwyck Research Topic: Dynamics of Jammed Systems. Light Scattering. Current Whereabouts: Graduate Student at Stanford
	LLuvia Rodriguez
	Anashe Bandari
	Charles Neill Research Topic: Light Scattering Current Whereabouts: Graduate Student at UC Santa Barbara
	David Kirszenblat Research Topic: Light Scattering.
Loic Jacot Dewcombes	Loic Jacot Descombes, visiting student, Nov 2008-April 2009 Masters Student at ETH Zurich, Switzerland Masters Thesis: Dynamic Light Scattering studies of fluid microdynamics (PDF) B.S. Physics, Ecole Polytechnique federale de Lausanne, Switzerland 2007 Research Topic: Light Scattering Studies of micro- and nano-particles. Current Whereabouts: ETH Zurich, Switzerland.
Magnus Heinz	Magnus Heinz, undergraduate researcher, 2009-2010 Current Whereabouts: Master's program in Computational Science, University of Frankfurt, Germany.
	Sarah Garcia, undergraduate researcher, 2008-2009
	Andrew McLeod, undergraduate researcher, 2008-2009 Current Whereabouts: Scotland, via UCSD exchange program.
	Kevin Duggento, undergraduate researcher, 2008-2009
Dr. Jyoti Mohanty	Dr. Jyoti Mohanty, Postdoctoral Fellow, 2008-2009 Research Topic: X-ray magnetic dichroism studies of magnetic thin films, magnetic and orbital domains in manganese oxides, charge density wave systems. Currently a Scientist at Technical University Berlin. Jyoti's website
	Michael Folkerts undergraduate researcher, 2008-2010 Research Topic: Dynamics of Jammed Systems. Light Scattering. Mike is currently a UCSD Physics Ph.D. student applying his knowledge of x-ray imaging and laser scattering to problems in Medical Imaging at UCSD Cancer Center.

Teaching:

The Webpage for Spring 2010 quarter of PHYS_100C

Reading & Reference:

• Reading lists for the group
• Equipment
• Manuals
• Presenting
• Group Presentations
• X-ray Group Journal Club
• RSS Feeds

Publications

• Surface Structure of the Liquid Au₇₂Ge₂₈ Eutectic Phase: X-ray Reflectivity
  P. S. Pershan, S. E. Stoltz, S. Mechler, O. G. Shpyrko, A. Y. Grigoriev, V. S. K. Balagurusamy, B. H. Lin and M. Meron
  Phys. Rev. B 80, 125414 (2009)

• Surface structure of liquid Bi and Sn: An x-ray reflectivity study
  P. S. Pershan, Sven Stoltz, Oleg G. Shpyrko, Moshe Deutsch, V. S. K. Balagurusamy, M. Meron, Binhua Lin and Reinhard Streitel
  Phys. Rev. B 79, 115417 (2009)

• Infrared spectroscopy and nano-imaging of the insulator-to-metal transition in vanadium dioxide
  M. M. Qazilbash, M. Brehm, G. O. Andreev, A. Frenzel, P.-C. Ho, Byung-Gyu Chae, Bong-Jun Kim, Sun Jin Yun, Hyun-Tak Kim, A. V. Balatsky, O. G. Shpyrko, M. B. Maple, F. Keilmann, and D. N. Basov
  Phys. Rev. B 79, 075107 (2009)

• Crystalline Surface Phases of the Liquid Au-Si Eutectic Alloy
  O. G. Shpyrko, R. Streitel, V. S. K. Balagurusamy, A. Yu. Grigoriev, M. Deutsch, B. M. Ocko, M. Meron, B. Lin and P. S. Pershan
  Phys. Rev. B 76, 245436 (2007)

• Pressure-Tuned Spin and Charge Ordering in an Itinerant Antiferromagnet
  Y. Feng, R. Jaramillo, G. Srajer, J. C. Lang, Z. Islam, M. S. Somayazulu, O. G. Shpyrko, J. J. Pluth, H.-k. Mao, E. D. Isaacs, G. Aeppli, T. F. Rosenbaum
  Phys. Rev. Lett. 99, 137201 (2007)

• more

Funding:

Our group's research is generously funded by DOE-BES, NSF CAREER, AFOSR-MURI, Hellman Foundation, Argonne LDRD as well as internal UCSD funding sources.

Group Calendar:

• UCSD Physics Department Seminars

• Group Meetings: Fridays (for now) at 1:00 PM in Mayer 5623
  • Presentation schedule (subject to change abruptly and without notice):
    • 7/15 Return of the group meeting
    • 7/22 Sebastian - "Spin-Based Digital Logic" - Abstract: With the use of personal computers and other electronics becoming more wide spread, energy consumption of these devices is becoming a large portion of all electricity used. Spin-based electronics is a solution that could greatly reduce this problem in the near future, while allowing us to reduced integrated circuitry size. A review of "spintronics" will be given, including recent work of generating pure spin currents and spin injection into semiconductors. Finally, a scheme for creating pure spin-based digital logic devices will be discussed.
    • 7/29 no meeting
    • 8/5 no meeting (beamtime)
• Group "Google Calendar"

UCSD Physics Department:

UC San Diego Physics Department Faculty

• UCSD Physics Department Graduate Program Listings
• UCSD Physics Department Website
• UCSD Physics Seminars and Colloquia
• UCSD Physics Department Brochure

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