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Effects of strain on electron spin transport in semiconductor epilayers Šimon Kosa , Scott A. Crookerb, Marina Hruskab , Avadh Saxenab , and Darryl L. Smithb a b Theory of Condensed Matter Group, Cavendish Laboratory, Cambridge, CB3 0HE, United Kingdom Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA We develop a semiclassical kinetic theory of electron spin transport in strained semiconductors in the presence of electric and magnetic fields. For the case of a uniaxial stress, the spin-orbit coupling of electron spin to strain is shown to directly affect the spin precession frequency. The implications of this theory in the diffusion approximation are found to be in excellent agreement with the scanning Kerr microscopy images of spin flows in n:GaAs epilayers under a uniaxial stress in h110i direction. Sorting category: Dd Conducting electrons in condensed matter Keywords: semiconductors, spin, optics, strain LT2526
