Current-driven spin orbit field in LaAlO3/SrTiO3 heterostructures
Kulothungasagaran Narayanapillai, Kalon Gopinadhan, Xuepeng Qiu, Anil, Annadi, Ariando, Thirumalai Venkatesan, Hyunsoo Yang
TL;DR
This paper demonstrates a tunable Rashba spin orbit interaction in LAO/STO heterostructures, showing current-induced effective magnetic fields that could enable spin orbit torque applications.
Contribution
It provides the first measurement of a current-driven Rashba field in LAO/STO heterostructures using AMR techniques.
Findings
Rashba field scales with current
Effective Rashba field of 2.35 T at 200 uA
LAO/STO can be used for spin orbit torque devices
Abstract
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.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.