[13p-S203-1~15] 6.3 Oxide electronics

[13p-S203-14] Nonlinear spin Hall effect in SrIrO₃ thin films revealed by first-principles calculations

〇Yusuke Kozuka¹, Keisuke Masuda¹, Yoshio Miura¹, Jun Fujioka², Shinji Isogami¹, Saikat Das¹, Tadakatsu Ohkubo¹, Shinya Kasai^1,3 (1.NIMS, 2.Univ. Tsukuba, 3.JST-PRESTO)

Keywords:spin Hall effect, spin-orbit interaction, first-principles calculations

A large nonlinear spin Hall effect has been observed at room temperature in centrosymmetric perovskite oxide SrIrO₃ thin films, but the mechanism is not clear. In this study, we investigate the mechanism of the nonlinear spin Hall effect in SrIrO₃ thin films using first-principles calculations. We find that characteristic spin texture appeared on the Fermi surface due to the inversion symmetry breaking at the surface, causing the nonlinear spin Hall effect.