Coupling of electron rotation with spin in semiconductors

Details Coupling of electron rotation with spin in semiconductors Coupling of electron rotation with spin in semiconductors

2007-08-19

arxiv.org/abs/0708.2565v2

Phys. Lett. A 372, 1106 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Will appear in Phys. Lett. A

Scientific paper

10.1016/j.physleta.2007.09.001

Account of an intrinsic spin-orbit coupling in the valence bands of common semiconductors yields the scalar spin-orbit-rotation term in the effective-mass Hamiltonian of the conduction-band electron. This result is obtained within the multiband envelope function approximation. Fundamentally, the spin-orbit-rotation coupling can be described in purely geometric terms as a consequence of the difference in the Berry phase acquired by the components of the spin-orbitally mixed Kramers-doublet during its cyclic evolution in the reciprocal momentum space.

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