講演情報
[19p-P06-21]Field-free spin-orbital torque magnetization switching in gallium-doped thulium iron garnet
〇山下 尚人1,2、Ngaloy Roselle2、黒川 雄一郎1、湯浅 裕美1、Dash Saroj2 (1.九大シス情、2.チャルマース工科大)
キーワード:
スピン軌道トルク、Tm3Fe5O12、集積イオンビーム
We investigated the effects of Ga ion irradiation on the spin-orbital torque in 5 nm-thick thulium iron garnet (TmIG). The Hall cross devices were prepared by deposltion of 3 nm-thick Pt and photolithography.The Ga-doped region is visualised by scanning electron microscope after the irradiation of 5 pC/µm2 at the acceralation voltage of 5 kV. The spin-Hall angle in both Ga-doped and undoped devices were evaluated as 0.012 and 0.015. Spin-orbital torque magnetization switching at 0 mT was demonstrated using both devices.
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