Spin-orbit fields in ferromagnetic metal/semiconductor junctions

Details Spin-orbit fields in ferromagnetic metal/semiconductor junctions Spin-orbit fields in ferromagnetic metal/semiconductor junctions

2009-07-23

arxiv.org/abs/0907.4149v2

Physics

Condensed Matter

Materials Science

4 pages, 3 figures

Scientific paper

The existence of the spin-orbit fields induced by the interface structure in Fe/GaAs junctions is proven from first-principles calculations. While the underlying symmetry of the fields follows that of the interface, the specific realization of the symmetry depends on the electron momentum and energy. The calculated atomic-layer-resolved expectation values of the Bloch states' spins show that the spin-orbit fields peak at the GaAs side of the interface. The employed technique is applicable to ferromagnetic junctions in general.

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