[20a-131-1~11] 【CS.9】 Code-sharing Session of 10.1, 10.2, 10.3 & 10.4

[20a-131-7] Dynamics of a Skyrmionium by Spin-Transfer-Torque

〇(M1)Yuichi Ishida¹, Kenji Kondo¹ (1.Hokkaido Univ.)

Keywords:spintronics, skyrmionium

Magnetic skyrmioniums are chiral and vortex-like spin structures. The direction of magnetization of a magnetic skyrmionium rotates once when we go away from its center. A topological number of a magnetic skyrmionium is Q = 1 + (- 1) = 0, which means that it is composed of a skyrmion and an anti-skyrmion. In this presentation, we report dynamics of a magnetic skyrmionium by spin-transfer-torque using micromagnetic simulations.