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Spin-density induced by electromagnetic wave in two-dimensional electron gas

Alexander Shnirman·Ivar Martin
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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.

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Alexander Shnirman, Ivar Martin. 2007-03-22. Spin-density induced by electromagnetic wave in two-dimensional electron gas. https://doi.org/10.1209/0295-5075%2F78%2F27001

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