The 83rd JSAP Autumn Meeting 2022

Presentation information

Oral presentation

10 Spintronics and Magnetics » 10.2 Fundamental and exploratory device technologies for spin

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

Thu. Sep 22, 2022 1:30 PM - 6:30 PM A205 (A205)

Shun Kanai(Tohoku Univ.), Kenji Kasahara(Fukuoka Univ.), Itoh Keita(東北大)

2:45 PM - 3:00 PM

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

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.