Robust to impurity-scattering spin Hall effect in two-dimensional electron gas

Details Robust to impurity-scattering spin Hall effect in two-dimensional electron gas Robust to impurity-scattering spin Hall effect in two-dimensional electron gas

2010-10-23

arxiv.org/abs/1010.4900v1

Phys. Rev. B 82, 121310 (R) (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4+ pages, 2 figures

Scientific paper

We propose a mechanism of spin Hall effect in two-dimensional electron gas with spatially random Rashba spin-orbit interaction. The calculations based on the Kubo formalism and kinetic equation show that in contrast to the constant spin-orbit coupling, spin Hall conductivity in the random spin-orbit field is not totally suppressed by the potential impurity scattering. Even if the regular contribution is removed by the vertex corrections, the terms we consider, remain. Therefore, the intrinsic spin-Hall effect exists being, however, non-universal.

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