title: Observation of inverse Edelstein effect in Rashba-split 2DEG between SrTiO3and LaAlO3at 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 ferromagnetic (FM) magnetization switching for technological applications. We report our observation of the inverse Edelstein effect up to room temperature in the Rashba-split two-dimensional electron gas (2DEG) between two insulating oxides, SrTiO3and LaAlO3, with the LaAlO3layer thickness from 3 to 40 unit cells (UC). We further demonstrate that the spin voltage could be markedly manipulated by electric field effect for the 2DEG between SrTiO3and 3-UC LaAlO3. These results demonstrate that the Rashba-split 2DEG at the complex oxide interface can be used for efficient charge-and-spin conversion at room temperature for the generation and detection of spin current.
authors.affiliation: International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.; Collaborative Innovation Center of Quantum Matter, Beijing 100871, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Song
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics and the Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Hongrui
authors.initials: H
authors.lastname: Zhang
authors.affiliation: International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.; Collaborative Innovation Center of Quantum Matter, Beijing 100871, China.
authors.forename: Tang
authors.initials: T
authors.lastname: Su
authors.affiliation: International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.; Collaborative Innovation Center of Quantum Matter, Beijing 100871, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Yuan
authors.affiliation: International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.; Collaborative Innovation Center of Quantum Matter, Beijing 100871, China.
authors.forename: Yangyang
authors.initials: Y
authors.lastname: Chen
authors.affiliation: International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.; Collaborative Innovation Center of Quantum Matter, Beijing 100871, China.
authors.forename: Wenyu
authors.initials: W
authors.lastname: Xing
authors.affiliation: Department of Physics and Astronomy, University of California, Riverside, Riverside, CA 92521, USA.
authors.forename: Jing
authors.initials: J
authors.lastname: Shi
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics and the Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Jirong
authors.initials: J
authors.lastname: Sun
authors.affiliation: International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.; Collaborative Innovation Center of Quantum Matter, Beijing 100871, China.
authors.forename: Wei
authors.identifier: 0000-0002-1757-4479
authors.initials: W
authors.lastname: Han
keywords: Complex oxide interfaces; Inverse Edelstein Effect; Rahsba 2DEG; Spin-and-charge conversion; Spintronics; SrTiO3/LaAlO3 heterostructure; spin manipulation