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Optical Hall conductivity in 2DEG and graphene QHE systems
Takahiro Morimoto, Yasuhiro Hatsugai, Hideo Aoki
We have revealed from a numerical study that the Hall plateaus are retained in the optical Hall conductivity in the ac ( THz) regime in both of the ordinary two-d…
Optical Hall conductivity in ordinary and graphene QHE systems
Takahiro Morimoto, Yasuhiro Hatsugai, Hideo Aoki
We have revealed from a numerical study that the optical Hall conductivity has a characteristic feature even in the ac ( THz) regime in that the Hall plateaus are…
Photo-induced Hall Effect in Graphene -- Effect of Boundary Types
Takashi Oka, Hideo Aoki
We theoretically predict, with the Keldysh Green's function combined with the Floquet method, that the AC electric field of a circularly polarized light should induce a Hall effect…
Nonequilibrium Steady State of Photoexcited Correlated Electrons in the Presence of Dissipation
Naoto Tsuji, Takashi Oka, Hideo Aoki
We present a framework to determine nonequilibrium steady states in strongly correlated electron systems in the presence of dissipation. This is demonstrated for a correlated elect…
Unconventional pairing originating from disconnected Fermi surfaces in the iron-based superconductor
Kazuhiko Kuroki, Hideo Aoki
For the iron-based high superconductor LaFeAsOF, we construct a minimal model, where all of the five Fe bands turn out to be involved. We then investigate the…