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Surface states, Friedel oscillations, and spin accumulation in p-doped semiconductors
Tudor D. Stanescu, Victor Galitski
We consider a hole-doped semiconductor with a sharp boundary and study the boundary spin accumulation in response to a charge current. First, we solve exactly a single-particle qua…
Boundary conditions for spin diffusion
Victor Galitski, A. A. Burkov, S. Das Sarma
We develop a general scheme of deriving boundary conditions for spin-charge coupled transport in disordered systems with spin-orbit interactions. To illustrate the application of t…
Griffiths phase in diluted magnetic semiconductors
Victor Galitski, A. Kaminski, S. Das Sarma
We study the effects of disorder in the vicinity of the ferromagnetic transition in a diluted magnetic semiconductor in the strongly localized regime. We derive an effective polaro…