[22p-A205-1~18] 10.2 Fundamental and exploratory device technologies for spin

[22p-A205-6] A phenomenological approach on self-induced spin-orbit torque in a ferromagnet with composition gradient

〇Tomohiro Taniguchi¹, Yuki Hibino¹, Shingo Tamaru¹, Kay Yakushiji¹, Hitoshi Kubota¹, Shinji Yuasa¹ (1.AIST)

Keywords:spintronics

Generating spin current from spin-orbit interaction in ferromagnets becomes of great interest recently. In particular, self-induced spin-orbit torque, which arises from the spin current generated in a ferromagnet and acts on the magnetization in the ferromagnet itself, has reported recently, although its mechanism is still unclear. Our group very recently found a self-induced spin-orbit torque due to a composition gradient in a ferromagnet. In this talk, we propose a phenomenological theory of spin transport in such a ferromagnet.