Spin Splitting and Spin Current in Strained Bulk Semiconductors

Details Spin Splitting and Spin Current in Strained Bulk Semiconductors Spin Splitting and Spin Current in Strained Bulk Semiconductors

2004-08-20

arxiv.org/abs/cond-mat/0408442v1

Phys. Rev. B 72, 115204 (2005)

Physics

Condensed Matter

Other Condensed Matter

7 pages, 2 figures

Scientific paper

10.1103/PhysRevB.72.115204

We present a theory for two recent experiments in bulk strained semiconductors \cite{kato1, kato2} and show that a new, previously overlooked, strain spin-orbit coupling term may play a fundamental role. We propose simple experiments that could clarify the origin of strain-induced spin-orbit coupling terms in inversion asymmetric semiconductors. We predict that a uniform magnetization parallel to the electric field will be induced in the samples studied in \cite{kato1, kato2} for specific directions of the applied electric field. We also propose special geometries to detect spin currents in strained semiconductors.

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