Inverse Spin Hall Effect and Anomalous Hall Effect in a Two-Dimensional Electron Gas

Details Inverse Spin Hall Effect and Anomalous Hall Effect in a Two-Dimensional Electron Gas Inverse Spin Hall Effect and Anomalous Hall Effect in a Two-Dimensional Electron Gas

2010-03-31

arxiv.org/abs/1003.6018v1

EPL 90, 67004 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages

Scientific paper

10.1209/0295-5075/90/67004

We study the coupled dynamics of spin and charge currents in a two-dimensional electron gas in the transport diffusive regime. For systems with inversion symmetry there are established relations between the spin Hall effect, the anomalous Hall effect and the inverse spin Hall effect. However, in two-dimensional electron gases of semiconductors like GaAs, inversion symmetry is broken so that the standard arguments do not apply. We demonstrate that in the presence of a Rashba type of spin-orbit coupling (broken structural inversion symmetry) the anomalous Hall effect, the spin Hall and inverse spin Hall effect are substantially different effects. Furthermore we discuss the inverse spin Hall effect for a two-dimensional electron gas with Rashba and Dresselhaus spin-orbit coupling; our results agree with a recent experiment.

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