Spin-density induced by electromagnetic wave in two-dimensional electron gas
Mesoscale and Nanoscale Physics
2007-05-23 v4
Abstract
We consider the magnetic response of a two-dimensional electron gas (2DEG) with a spin-orbit interaction to a long-wave-length electromagnetic excitation. We observe that the transverse electric field creates spin polarization perpendicular to the 2DEG plane. The effect is more prominent in clean systems with resolved spin-orbit-split subbands, and reaches maximum when the frequency of the wave matches the subband splitting at the Fermi momentum. The relation of this effect to the spin-Hall effect is discussed.
Cite
@article{arxiv.cond-mat/0610124,
title = {Spin-density induced by electromagnetic wave in two-dimensional electron gas},
author = {Alexander Shnirman and Ivar Martin},
journal= {arXiv preprint arXiv:cond-mat/0610124},
year = {2007}
}
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