Current-driven spin orbit field in LaAlO3/SrTiO3 heterostructures

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.

References in corpus (3)

• Electric Field Control of the LaAlO${}_3$/SrTiO${}_3$ Interface Ground State
• Angular and temperature dependence of current induced spin-orbit effective fields in Ta/CoFeB/MgO nanowires
• Rashba induced magnetoconductance oscillations in the LaAlO3-SrTiO3 heterostructure

Cited by in corpus (4)

• Spin orbit torques and Dzyaloshinskii-Moriya interaction in dual-interfaced Co-Ni multilayers
• Determining the Rashba parameter from the bilinear magnetoresistance response in a two-dimensional electron gas
• Interfacial Rashba magnetoresistance of two-dimensional electron gas at LaAlO${}_3$/SrTiO${}_3$ interface
• Tunable spin and orbital polarization in SrTiO3-based heterostructures