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Polarized Electric Current in Semiclassical Transport with Spin-Orbit Interaction

P. G. Silvestrov·E. G. Mishchenko
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Abstract

Semiclassical solutions of two-dimensional Schrodinger equation with spin-orbit interaction and smooth potential are considered. In the leading order, spin polarization is in-plane and follows the evolution of the electron momentum for a given subband. Out-of-plane spin polarization appears as a quantum correction, for which an explicit expression is obtained. We demonstrate how spin-polarized currents can be achieved with the help of a barrier or quantum point contact open for transmission only in the lower subband.

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P. G. Silvestrov, E. G. Mishchenko. 2006-10-17. Polarized Electric Current in Semiclassical Transport with Spin-Orbit Interaction. https://doi.org/10.1103/physrevb.74.165301

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