Spin polarization of electrons by non-magnetic heterostructures : basics of spin-optics

Details Spin polarization of electrons by non-magnetic heterostructures : basics of spin-optics Spin polarization of electrons by non-magnetic heterostructures : basics of spin-optics

2004-03-09

arxiv.org/abs/cond-mat/0403252v1

Phys. Rev. Lett. 92, 086602 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 colored figures. Published in PRL

Scientific paper

10.1103/PhysRevLett.92.086602

We propose to use the lateral interface between two regions with different strengths of the spin-orbit interaction(s) to spin-polarize the electrons in gated two dimensional semiconductor heterostructures. For a beam with a non zero angle of incidence the transmitted electrons will split into two spin polarization components propagating at different angles. We analyze the refraction at such an interface and outline the basic schemes for filtration and control of the electron spin.

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