Center for Emergent Superconductivity

Principal Investigators

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Wai-Kwong Kwok

MSD-223
Argonne National Laboratory
9700 S. Cass Avenue
Argonne, IL 60439

Phone: (630) 252-5539
Fax:     (630) 252-4748
Email:  wkwok@anl.gov
Web:   http://www.msd.anl.gov/index.php/sm-personnel/41-personnel/personnel-sm/140

 

Educational Background

• Ph.D. in Condensed Matter Physics, Purdue University

Present Position

• Senior Scientist & Group Leader of the Superconductivity & Magnetism Group, Materials Science Division
  

Professional Experience

• February 2001 - Present Group Leader, Superconductivity and Magnetism Group,
  
• August 2007 - Present Senior Physicist, Materials Science Division
  
• May 1994 - July 2007 Physicist, Materials Science Division
  
• December. 1988 - April 1994 Assistant Physicist, Materials Science Division
  
• September 1988 - December. 1988 Term Assistant Physicist, Argonne National Laboratory
  
• December 1987 - September 1988 Postdoctoral Research Fellow, Argonne National Laboratory

Selected Honors & Awards

• Fellow of the American Physical Society, 1999
• University of Chicago Outstanding Accomplishment Award, 1998
• Department of Energy Award for Outstanding Accomplishment in Materials Science, 1997
• Department of Energy Award for Outstanding Accomplishment in Materials Science, 1990

Research Interests

• Materials Science
• Nanoscale Superconductors and Magnets
• Vortex Matter in Superconductors
• Highly Correlated Electrons in Metals
• Physics of Granular Matter

Selected Recent Publications

Of ~240 in print. Over 10500 career citations, 30 papers with over 100 citations, 42 citations/paper (average), h-index = 49.

• Guiding Superconducting Vortices with Magnetic Domain Walls
  V. Vlasko-Vlasov, U. Welp, G. Karapetrov, V. Novosad, D. Rosenmann, M. Iavarone, A. Belkin and W.-K. Kwok, Phys. Rev. B 77, 134518 (2008).
• Enhancement of the Irreversibility Line in YBa2Cu3O6.95 Single Crystals Patterned by Heavy Ion Lithography
  F. Laviano, R. Xie, E. Mezzetti and W. K. Kwok, Phys. Rev. B 77, 214501 (2008).
• Calorimetric determination of the upper critical fields and anisotropy of NdFeAsO1-xFx single crystals
  U. Welp, R. Xie, A. E. Koshelev, W. K. Kwok, P. Cheng, L. Fang, H. H. Wen, Phys. Rev. B 78, 140510 (2008).
• Anisotropic phase diagram and strong coupling effects in Ba1-xKxFe2As2 from specific-heat measurements
  U. Welp, R. Xie, A. E. Koshelev, W. K. Kwok, H. Q. Luo, Z. S. Wang, G. Mu, and H. H. Wen, Phys. Rev. B 78, 140510 (2008).
• Self-Assembled Magnetic Surface Swimmers
  A. Snezhko, M. Belkin, I. S. Aranson, and W. K. Kwok, Phys. Rev. Lett. 102, 118103 (2009).
• Magnetoresistance oscillations in superconducting granular niobium nitride nanowires
  U. Patel, Z L. Xiao, A. Gurevich, S. Avci, J. Hua, R. Divan, U. Welp, and W. K. Kwok, Phys. Rev. B 80, 012504 (2009).