[15p-PA01-1~58] 10 Spintronics and Magnetics (Poster)

▲ [15p-PA01-8] Current-induced domain wall motion in a perpendicularly magnetized Co2MnGa/Pd

〇(M1)Takaya Koyama¹, Yuki Nishioka¹, Tetsuya Uemura¹, Michihiko Yamanouchi¹ (1.Hokkaido Univ.)

Keywords:current-induced domain wall motion, Weyl ferromagnet, spin-orbit torque

Current-induced domain wall (DW) motion is one of schemes for electrical manipulation of magnetization, which is essential for operation of spintronics devices. A perpendicularly magnetized Co₂MnGa (CMG) film which is considered to be a Weyl ferromagnet, is promising for the application to spintronics devices using DW motion because the DW created in it can be moved with low current density by recently proposed topological Hall torque (THT). Since perpendicular magnetic anisotropy has been reported in heterostructures composed of a CMG and a heavy metal Pd film, the heterostructures are suitable to examine the current-induced DW motion. Moreover, both spin-orbit torque (SOT) and THT are exerted on the DW in the heterostructures, and thus further efficient DW motion can be expected in them. In this study, we investigated current-induced DW motion in perpendicularly magnetized CMG/Pd.