Phys. Rev. B 75, 075313 (2007) [7 pages]Charge and spin transport in spin valves with anisotropic spin relaxationReceived 27 October 2006; published 9 February 2007 We investigate effects of spin-orbit splitting on electronic transport in a spin valve consisting of a large quantum dot defined on a two-dimensional electron gas with two ferromagnetic contacts. In the presence of both structure and bulk inversion asymmetry a giant anisotropy in the spin-relaxation times has been predicted. We show how such an anisotropy affects the electronic transport properties such as the angular magnetoresistance and the spin-transfer torque. Counterintuitively, anisotropic spin-relaxation processes sometimes enhance the spin accumulation. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.75.075313
DOI:
10.1103/PhysRevB.75.075313
PACS:
72.25.Hg, 73.63.Kv, 85.75.−d
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