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cond-mat.mtrl-sci2020★ 2 cited
Nonlinear optical response from quantum kinetic equation
Zhi Li, Takami Tohyama, Toshiaki Iitaka +2
Motivated by the nonlinear Hall effect observed in topological semimetals, we studied the photocurrent by the quantum kinetic equation. We recovered the shift current and injection…
cond-mat.mtrl-sci2015
GdN thin-film: Chern Insulating State on Square Lattice
Zhi Li, Jinwoong Kim, Nicholas Kioussis +6
Using first-principles calculations, we predict a Chern insulating phase in thin films of the ferromagnetic semi-metal GdN. In contrast to previously proposed Chern insulator candi…