Perpendicular magnetization switching by large spin–orbit torques from sputtered Bi2Te3 |
Current-induced switching curves of Bi2Te3/CoTb under an in-plane magnetic field Hx = 400 Oe (a) and –400 Oe (e). (b)–(c) The AHE curves of Pt/CoTb, Ta/CoTb, and W/CoTb samples, respectively. (f)–(h) The current-induced switching curves of Pt/CoTb, Ta/CoTb, and W/CoTb samples under Hx = 400 Oe. The different switching polarities reveal different spin Hall angle signs. |
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