[15a-D311-1~12] 6.3 Oxide electronics

[15a-D311-11] Spin-orbit torque in SrIrO₃/Co heterointerfaces

〇Yusuke Kozuka¹, Shinji Isogami¹, Tadakatsu Ohkubo¹, Shinya Kasai^1,2 (1.NIMS, 2.JST-PRESTO)

Keywords:Spin-orbit torque, SrIrO3

We have investigated the spin-orbit torque at SrIrO₃/Co junctions, where SrIrO₃ is a conducting nonmagnetic oxide with strong spin-orbit interaction in terms of oxide spin-Hall materials. In order to evaluate spin-orbit torque, we utilized second harmonic measurements using lock-in amplifiers in the planar Hall geometry. The in-plane magnetic field angle dependence shows one-fold symmetry, indicating that spin-orbit torque detected at SrIrO₃/Co junctions are mainly along the current direction.