Observation of Inverse Edelstein Effect in Rashba-Split 2DEG between SrTiO3 and LaAlO3 at Room Temperature

Abstract

The Rashba physics has been intensively studied in the field of spin orbitronics, for the purpose of searching novel physical properties and the FM magnetization switching for technology applications. Here, we report the observation of the inverse Edelstein effect up to room temperature in the Rashba-split 2DEG between two insulating oxides SrTiO3 and LaAlO3 with the LaAlO3 layer thickness from 3 to 40 unit cells (UC). We further demonstrate that the spin voltage could be dramatically manipulated by electric field effect for the 2DEG between SrTiO3 and 3 UC LaAlO3. These results demonstrate that the Rashba-split 2DEG at the complex oxide interface can be used for room temperature efficient charge-and-spin conversion for the generation and detection of spin current.

arXiv comment10 pages, 5 figures, Accepted to Science Advances

References in corpus (21)

• New Perspectives for Rashba Spin-Orbit Coupling
• Spin Transfer Torque Generated by the Topological Insulator Bi_2Se_3
• Nonlocal magnetization dynamics in ferromagnetic heterostructures
• Tunable Rashba spin-orbit interaction at oxide interfaces
• Control of spin-orbit torques through crystal symmetry in WTe2/ferromagnet bilayers
• Quantifying spin Hall angles from spin pumping: Experiments and Theory
• Highly efficient and tuneable spin-to-charge conversion through Rashba coupling at oxide interfaces
• Valley contrasting chiral phonons in monolayer hexagonal lattices
• Mapping the Spatial Distribution of Charge Carriers in LaAlO3/SrTiO3 Heterostructures
• Spin-pumping into surface states of topological insulator α-Sn, spin to charge conversion at room temperature
• Inverse Edelstein Effect
• Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers
• Observation of the inverse spin Hall effect in silicon
• Perspectives for Spintronics in 2D Materials
• Experimental Investigation of Temperature-Dependent Gilbert Damping in Permalloy Thin Films
• Origin of inverse Rashba-Edelstein effect at Cu/Bi interface using lateral spin valves
• Visible light enhanced field effect at LaAlO3/SrTiO3 interface
• Gate-tunable spin-charge conversion and a role of spin-orbit interaction in graphene
• Strong evidence for d-electron spin transport at room temperature at a LaAlO3/SrTiO3 interface
• Spin injection and detection in lanthanum- and niobium-doped SrTiO3 using the Hanle technique
• Spin Injection and Inverse Edelstein Effect in the Surface States of Topological Kondo Insulator SmB6

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