Jong Han, PhD

349B Fronczak Hall
(716) 645-3865
jonghan@buffalo.edu
Website

• BS, Physics, Seoul National University – 1989
• MS, Physics, Seoul National University – 1991
• PhD, Physics, Ohio State University – 1997

Condensed Matter Theory

Condensed matter theory, nonequilibrium quantum many-body theory, electron correlation in solids

Electronic interaction in condensed matter systems is the main focus of my research. Fundamental changes in materials properties such as phase transition controlled by external conditions is the main theme. With today’s advancement in nanotechnology, the external electric bias applied on nanoscale devices opens up new realm of physics questions which had been non-questions a few decades ago. The examples are transformation of collective states such as resistive phase transitions through electron-electron interaction, or disorder-driven localization when driven by external electric field. Most work involves close collaboration with experimentalists. My group uses theoretical techniques such as analytic and numerical diagrammatic methods with Green’sfunctions, and fully numerical methods such as quantum Monte Carlo method, exact-diagonalization.

• Microscopic Theory of Resistive Switching in Ordered Insulators: Electronic versus Thermal Mechanisms, Jiajun Li, Camille Aron, Gabriel Kotliar, and Jong E. Han, Nano Letters (2017)
• Tunneling Planar Hall Effect in Topological Insulators: Spin-Valves and Amplifiers, Benedikt Scharf, Alex Matos-Abiague, Jong E. Han, Ewelina M.Hankiewicz, and Igor Zutic, Phys. Rev. Lett. 117, 166806 (2016)
• Electric-Field-Driven Resistive Switching in the Dissipative Hubbard Model, Jiajun Li, Camille Aron, Gabriel Kotliar, and Jong E. Han, Phys. Rev. Lett. 114,226403 (2015)
• Formation of a protected sub-band for conduction in quantum point contactsunder extreme biasing, J. Lee, J. E. Han, S. Xiao, J. Song, J. L. Reno, and J. P.Bird, Nature Nanotechnology (2013). doi:10.1038/nnano.2013.297.
• Energy dissipation in a dc-field-driven electron lattice coupled to fermion baths, Jong E. Han and Jiajun Li, Phys. Rev. B 88, 075113 (2013)

For a complete list of publications, please see Google Scholar.