3 papers
cond-mat.mes-hall2026
Nonlinear response theory for orbital photocurrent in semiconductors
Kakeru Tanaka, Hiroaki Ishizuka
Recent theoretical studies on the nonlinear response of spin and orbital degrees of freedom have discovered spin and orbital analogs of the photocurrent, with potential for charact…
cond-mat.mes-hall2026
Nonlinear spin-motive force driven by mixed-space quantum geometry
Tomonari Meguro, Hiroaki Ishizuka, Kentaro Nomura
Spin-motive force, i.e., the electric current induced by magnetization dynamics, is theoretically studied beyond the Thouless-pump paradigm. In contrast to the linear-response regi…
cond-mat.str-el2024
Giant Hall effect in a highly conductive frustrated magnet GdCu
Kosuke Karube, Yoshichika Ånuki, Taro Nakajima +10
The Hall effect is one of the most fundamental but elusive phenomena in condensed matter physics due to the rich variety of underlying mechanisms. Here we report an exceptionally l…