On boundary conditions for spin diffusion equations with Rashba spin-orbit interaction
arXiv:cond-mat/0606351 · doi:10.1103/PhysRevB.74.113309
Abstract
We reexamine the boundary conditions of spin diffusion equations for dirty semiconductor heterostructures with weak linear Rashba spin-orbit interaction. Doing so, we focus on the influence of tangent derivatives of the particle density at the boundary on the magnetization. Such derivatives are associated with a spin accumulation in the presence of a density gradient. We show that the tangent derivatives enter the boundary conditions and argue that the spin-Hall effect is absent in such systems because of this fact.
7 pages
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- Current-induced spin polarization and the spin Hall effect: a quasiclassical approach
- Coupled spin-charge drift-diffusion approach for a two-dimensional electron gas with Rashba spin-orbit coupling
- Semiconductor Spintronics: Progress and Challenges
- Hanle Effect near Boundaries