Spin accumulation at nonmagnetic interface induced by direct Rashba Edelstein effect

Abstract

Rashba effect describes how electrons moving in an electric field experience a momentum dependent magnetic field that couples to the electron angular momentum (spin). This physical phenomenon permits the generation of spin polarization from charge current (Edelstein effect), which leads to the buildup of spin accumulation. Spin accumulation due to Rashba Edelstein effect has been recently reported to be uniform and oriented in plane, which has been suggested for applications as spin filter device and efficient driving force for magnetization switching. Here, we report the X-ray spectroscopy characterization Rashba interface formed between nonmagnetic metal (Cu, Ag) and oxide (Bi${}_2$O${}_3$) at grazing incidence angles. We further discuss the generation of spin accumulation by injection of electrical current at these Rashba interfaces, and its optical detection by time resolved magneto optical Kerr effect. We provide details of our characterization which can be extended to other Rashba type systems beyond those reported here.

arXiv comment13 pages, 5 figures

References in corpus (6)

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• Clear variation of spin splitting by changing electron distribution at non-magnetic metal/Bi2O3 interfaces
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• Effective Hamiltonian theory for nonreciprocal light propagation in magnetic Rashba conductor
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Cited by in corpus (5)

• Electrically Controlled Spin Injection from Giant Rashba Spin-Orbit Conductor BiTeBr
• Photoinduced Rashba spin to charge conversion via interfacial unoccupied state
• Anomalous spin-orbit field via Rashba-Edelstein effect at W/Pt interface
• Two-dimensional electron gas in a metal/amorphous oxide interface with spin orbit interaction
• Spin-orbit torque on nuclear spins exerted by a spin accumulation via hyperfine interactions