Spin-polarized reflection of electrons in a two-dimensional electron system

Details Spin-polarized reflection of electrons in a two-dimensional electron system Spin-polarized reflection of electrons in a two-dimensional electron system

2003-08-27

arxiv.org/abs/cond-mat/0308569v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

14 pages

Scientific paper

We present a method to create spin-polarized beams of ballistic electrons in a two-dimensional electron system in the presence of spin-orbit interaction. Scattering of a spin-unpolarized injected beam from a lithographic barrier leads to the creation of two fully spin-polarized side beams, in addition to an unpolarized specularly reflected beam. Experimental magnetotransport data on InSb/InAlSb heterostructures demonstrate the spin-polarized reflection in a mesoscopic geometry, and confirm our theoretical predictions.

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