Intrinsic vs. Extrinsic Spin Currents. Old Ideas in a New Light

Details Intrinsic vs. Extrinsic Spin Currents. Old Ideas in a New Light Intrinsic vs. Extrinsic Spin Currents. Old Ideas in a New Light

2005-12-19

arxiv.org/abs/cond-mat/0512458v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Proceedings of LT24 Conference, Invited talk, 4 pages

Scientific paper

10.1063/1.2355278

We have described the electron spin dynamics in the presence of Rashba spin- orbit interaction and disorder using the spin-density matrix method. We showed that in the Born approximation in the scattering amplitude the spin current is zero for an arbitrary ratio of the spin-orbit splitting and the scattering rate and for an arbitrary disorder potential. We also describe some magnetotransport phenomena such as negative magnetoresistance and a negative charge Hall effect which occur in the presence of spin-orbit coupling.

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