Inverse Edelstein Effect: an Heuristic Derivation
R. Raimondia, Ka Shen b and G. Vignale b
aDipartimento di Matematica e Fisica, Università Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy
bDepartment of Physics and Astronomy, University of Missouri, Columbia MO 65211, USA
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We provide a heuristic derivation of the "Inverse Edelstein Effect" (IEE), in which a non-equilibrium spin accumulation in the plane of a two-dimensional (interfacial) electron gas drives an electric current perpendicular to its own direction. The drift-diffusion equations that govern the effect are derived and applied to the interpretation of recent experiments. A brief analysis based on the Kubo formula shows that the result is valid also outside the diffusive regime, i.e. when spin and momentum relaxation become comparable.

DOI: 10.12693/APhysPolA.127.454
PACS numbers: 72.25.Dc, 75.70.Tj, 85.75.-d