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.

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• A Gate-tunable Polarized Phase of Two-Dimensional Electrons at the LaAlO3/SrTiO3 Interface
• Rashba induced magnetoconductance oscillations in the LaAlO3-SrTiO3 heterostructure
• Origin and Transport Signatures of Spin-Orbit Interactions in One- and Two-Dimensional SrTiO${}_3$-Based Heterostructures

Cited by in corpus (14)

• Roadmap of spin-orbit torques
• Spin-orbit torque engineering via oxygen manipulation
• Room Temperature Giant Charge-to-Spin Conversion at SrTiO3/LaAlO3 Oxide Interface
• FMR-related phenomena in spintronic devices
• Spin orbit torques and Dzyaloshinskii-Moriya interaction in dual-interfaced Co-Ni multilayers
• Anisotropic magnetoresistance: materials, models and applications
• Determining the Rashba parameter from the bilinear magnetoresistance response in a two-dimensional electron gas
• Gate Tunable In- and Out-Of-Plane Spin-Orbit Coupling and Spin Splitting Anisotropy at LaAlO3/SrTiO3 (110) Interface
• Emerging spintronics phenomena and applications
• Interfacial Rashba magnetoresistance of two-dimensional electron gas at LaAlO${}_3$/SrTiO${}_3$ interface
• Tunable spin and orbital polarization in SrTiO3-based heterostructures
• Strain Engineering of the Intrinsic Spin Hall Conductivity in a SrTiO${}_3$ Quantum Well
• Steering of the Skyrmion Hall Angle By Gate Voltage
• Room temperature charge-to-spin conversion from q-2DEG at SrTiO3-based interfaces