On boundary conditions for spin diffusion equations with Rashba spin-orbit interaction

Details On boundary conditions for spin diffusion equations with Rashba spin-orbit interaction On boundary conditions for spin diffusion equations with Rashba spin-orbit interaction

2006-06-14

arxiv.org/abs/cond-mat/0606351v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

7 pages

Scientific paper

10.1103/PhysRevB.74.113309

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.

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