Current-driven spin orbit field in LaAlO3/SrTiO3 heterostructures

arxiv: 1410.0456 · v1 · pith:HMBLJLZ4new · submitted 2014-10-02 · ❄️ cond-mat.mtrl-sci · cond-mat.mes-hall

Current-driven spin orbit field in LaAlO3/SrTiO3 heterostructures

Kulothungasagaran Narayanapillai , Kalon Gopinadhan , Xuepeng Qiu , Anil Annadi , Ariando , Thirumalai Venkatesan , Hyunsoo Yang This is my paper

classification ❄️ cond-mat.mtrl-sci cond-mat.mes-hall

keywords fieldorbitrashbaspincurrentheterostructureslaalo3srtio3

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We demonstrate a current tunable Rashba spin orbit interaction in LaAlO3/SrTiO3 (LAO/STO) quasi two dimensional electron gas (2DEG) system. Anisotropic magnetoresistance (AMR) measurements are employed to detect and understand the current-induced Rashba field. The effective Rashba field scales with the current and a value of 2.35 T is observed for a dc-current of 200 uA. The results suggest that LAO/STO heterostructures can be considered for spin orbit torque based magnetization switching.

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Current-driven spin orbit field in LaAlO3/SrTiO3 heterostructures

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