Wai-Kwong Kwok
Emeritus
Biography
Education
Ph.D. in Condensed Matter Physics, Purdue University
B.A. in Physics and Mathematics, Kenyon College
Professional Experience
2018- Present Fellow, Northwestern Argonne Institute for Science and Engineering (NAISE)
2017 - Present Argonne Distinguished Fellow
2011 - Present Adjunct professor, University of Notre Dame
Aug 2007 - Present Senior Physicist, Materials Science Division
Oct 2001 - Present Group Leader, Superconductivity & Magnetism Group
May 1994 - Jul 2007 Physicist, Materials Science Division
Dec 1988 - Apr 1994 Assistant Physicist, Materials Science Division
Sep 1988 - Dec 1988 Term Assistant Physicist, Argonne National Laboratory
Dec 1987 - Sep 1988 Postdoctoral Research Fellow, Argonne National Laboratory
Selected Awards
American Physical Society Outstanding Referee Award (2019)
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
Selected Professional Activities
Co-Associate Director and co-Theme Leader for the EFRC on Center for Emergent Superconductivity (Aug. 2014 - 2018)
Theme Leader of Vortex/Critical Current for the EFRC on Center for Emergent Superconductivity (Aug. 2009-2014)
Contributor to Report on DoE-BES Basic Research Needs Report on Quantum Materials (Feb 2016)
Co-Chair on DoE-BES Workshop on Basic Research Needs for Superconductivity (May 2006)
Editor, Physica C, 2003- 2015
Research Interests
Topological Materials
Nanoscale superconductors and magnets
Vortex matter in superconductors
Highly correlated electrons in metals
Physics of granular matter
Research Supervision
12 Ph.d, diplome students and postdocs supervised since 1990
Supervised over 25 undergraduate science majors in the Science and Engineering Research Semester (SERS) program supported by the DOE-Division of Educational Programs since 1985.
Selected Recent Publications
of 371 in refereed journals; 16,227 career citations, 43 citations/paper (average), h-index = 63.
(1) Orbital Flop in Rare Earth Monopnictide CeSb, Jing Xu, Fengcheng Wu, Jinke Bao, Fei Han, Zhi-Li Xiao, Ivar Martin, Yang-Yang Lyu, Yong-Lei Wang, Duck Young Chung, Mingda Li, Wei Zhang, John E. Pearson, Jidong S. Jiang, Mercouri G. Kanatzidis, and Wai-Kwong Kwok, Nature Communications 10, 2875 (2019)
(2) Strong Coupling between Magnons and Microwave Photons in On-Chip Ferromagnet-Superconductor Thin-Film Devices, Yi Li, Tomas Polakovic, Yong-Lei Wang, Jing Xu, Sergi Lendinez, Zhizhi Zhang, Junjia Ding, Trupti Khaire, Hilal Saglam, Ralu Divan, John Pearson, Wai-Kwong Kwok, Zhili Xiao, Valentine Novosad, Axel Hoffmann, and Wei Zhang, Phys. Rev. Lett. 123, 107701 (2019)
(3) Strongly fluctuating moments in the high-temperature magnetic superconductor RbEuFe4As4, K. Willa, R. Willa, J.-K. Bao, A. E. Koshelev, M. G. Kanatzidis, W. -K. Kwok, and U. Welp, Phys. Rev. B 99, 180502(R) (2019)
(4) Disorder Raises the Critical Temperature of a Cuprate Superconductor, Maxime Leroux, Vivek Mishra, Jacob P.C. Ruff, Helmut Claus, Matthew P. Smylie, Chirstine Opagiste, Pierre Rodiere, Asghar Kayani, G. D. Gu, John M. Tranquada, Wai-Kwong Kwok, Zahirul Islam, and Ulrich Welp. PNAS 116 (22), 10691 (2019)
(5) Self-induced Magnetic Flux Structure in the Magnetic Superconductor RbEuFe4As4, V. K. Vlasko-Vlasov, A. E. Koshelev, M. Smylie, J.-K. Bao, D. Y. Chung, M. G. Kanatzidis, U. Welp, and W.- K. Kwok, Physical Review B 99, 134503 (2019).
(6) Nanocalorimetric Evidence for Nematic Superconductivity in the Doped Topological Insulator Sr0.1Bi2Se3, Kristin Willa, Roland Willa, Kok Wee Song, G. D. Gu, John A. Schneeloch, Ruidan Zhong, Alexei E. Koshelev, Wai-Kwong Kwok, and Ulrich Welp, Physical Review B 98, 184509 (2018)
(7) Anisotropic superconductivity and magnetism in single-crystal RbEuFe4As4, M. P. Smylie, K. Willa, J. -K. Bao, K. Ryan, Z. Islam, H. Claus, Y. Simsek, Z. Diao, A. Rydh, A. E. Koshelev, W. -K. Kwok, D. Y. Chung, M. G. Kanatzidis and U. Welp, Physical Review B 98, 104503. (2018)
(8) Superconducting and normal-state anisotropy of the doped topological insulator Sr0.1Bi2Se3, M. P. Smylie, K. Willa, H. Claus, A. E. Koshelev, K. W. Song, W. K. Kwok, Z. Islam, G. D. Gu, J. A. Schneeloch, R. D. Zhong, U. Welp, Scientific Reports 8, 7666 (2018)
(9) Switchable geometric frustration in an artificial-spin-ice-superconductor heterosystem, Yong-Lei Wang, Xiaoyu Ma, Jing Xu, Zhi-Li Xiao, Alexey Snezhko, Ralu Divan, Leonidas E. Ocola, John E. Pearson, Boldizsar Janko and Wai-Kwong Kwok, Nature Nanotechnology 13, 560-565 (11 June 2018)
(10) Parallel magnetic field suppresses dissipation in superconducting nanostrips, Yong-Lei Wang, Andreas Glatz, Gregory J. Kimmel, Igor S. Aranson, Laxman R. Thoutam , Zhi-Li Xiao, Golibjon R. Berdiyorov, Francois M. Peeters, George W. Crabtree, and Wai-Kwong Kwok. PNAS 114, E10274 (2017).
Selected Recent Invited Talks
Vortex Dynamics via In-situ Magnetic Texturing, W. K. Kwok, 17th International Workshop on Vortex Matter in Superconductors, Antwerp, Belgium May 20-25, 2019.
Guiding Vortex Matter via Magnetic Patterned Structures, W. K. Kwok, 31stInternational Superconductivity Symposium (ISS 2018), Tsukuba, Japan, December 12-14, 2018
Reconfigurable Magnetic Charge Ice for Tailoring Superconducting Vortex Behavior, W. K. Kwok, Loch Lomond Workshop on Artificial Spin Ice, June 26 – 28, 2017, Scotland, UK
Vortex Studies on a Hybrid Superconducting/Magnetic Spin Ice System, W. K. Kwok, 29th International Superconductivity Symposium (ISS2016), December 13-15, 2016
Towards Critical Current by Design in HTS, W. –K. Kwok, The 4th CAS-DOE/BES Collaboration Workshop on Novel Superconductors, Shanghai China, May 6-8, 2016
“rradiation Enhanced Critical Current in High Performance High Temperature Superconductors, Wai –K. Kwok, 11th International Conference on Ceramic Materials Components for Energy and Environmental Applications (CMCEE-11), Vancouver, Canada, (June 14-19, 2015)
Enhancing Superconducting Critical Current by Randomness, Wai -K. Kwok, 15th International Workshop on Vortex Matter in Superconductors, El Escorial, Spain (May 10 – 15, 2015)
Irradiation Effects of Vortex Pinning in High Performance High Temperature Superconductors, Wai –K. Kwok, 27th International Symposium on Superconductivity (ISS2014), Funabori, Tokyo, Japan (Nov. 25-27, 2014)
Irradiation Induced Vortex Pinning in Iron-based Superconductors, W. K. Kwok, Physics and Applications of Superconducting Hybrid Nano-Engineered Devices 2014, Aug. 31 – Sept. 4, 2014, Santa Maria Castellabate, Italy
Tailored Large Critical Currents in Iron-based Superconductors”, W. K. Kwok, American Physical Society March Meeting, March 2-7, 2014, Denver, Colorado.
Breaking the Glass Ceiling on Superconducting Critical Currents”, Wai Kwok, 2013 MRS Spring Meeting, April 1-5, 2013, San Francisco, CA