Abstract
The effect of Rashba spin-orbit coupling on the supercurrent in S-2DEG-S proximity junctions is investigated in the clean limit. A generalization of Beenakker’s formula for Andreev levels to the case of spin-orbit scattering is presented. Spin-orbit induced splitting of Andreev bound states is predicted for an infinite-width junction with nonvanishing normal backscattering at S-N interfaces. However, a semiclassical average of the Josephson current is insensitive to the Rashba coupling as long as the electron-electron interaction in 2DEG is neglected.
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Dimitrova, O.V., Feigel’man, M.V. Two-dimensional S-N-S junction with Rashba spin-orbit coupling. J. Exp. Theor. Phys. 102, 652–660 (2006). https://doi.org/10.1134/S1063776106040157
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DOI: https://doi.org/10.1134/S1063776106040157