2004/12/20 by B. Andrei Bernevig, Bernevig, B. Andrei, Shou-Cheng Zhang +1
Physics and Astronomy · #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.mtrl-sci #cond-mat.other
paper · pdf · doi:10.48550/arxiv.cond-mat/0412550
4 pages
arxiv created 2004/12/20 · arxiv updated 2009/12/01
We show that the bulk Dresselhauss (k3) spin-orbit coupling term leads to an intrinsic spin-Hall effect in n-doped bulk GaAs, but without the appearance of uniform magnetization. The spin-Hall effect in strained and unstrained bulk GaAs has been recently observed experimentally by Kato et. al. \citekato2004A. We show that the experimental result is quantitatively consistent with the intrinsic spin-Hall effect due to the Dresselhauss term, when lifetime broadening is taken into account. On the other hand, extrinsic contribution to the spin-Hall effect is several orders of magnitude smaller than the observed effect.