Bulk Spin-Hall Effect
arXiv:0905.2771 · doi:10.1103/PhysRevB.81.121304
Abstract
We show that a two-dimensional spin-orbit-coupled system in the presence of a charge/spin-density wave with a wave-vector perpendicular to an applied electric field supports bulk manifestations of the direct/inverse spin-Hall effect. We develop a theory of this phenomenon in the framework of the spin diffusion equation formalism and show that, due to the inhomogeneity created by a spin-grating, an anomalous bulk charge-density wave is induced away from sample boundaries. The optimal conditions for the observation of the effect are determined. The main experimental manifestation of the bulk spin-Hall effect, the induced charge/spin-density-wave, is characterized by a pi/2-phase shift relative to the initial non-homogeneous spin/charge-polarization profile and has a non-monotonic time-varying amplitude.
4 pages, 4 figures
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Cited by in corpus (4)
- Theory of coupled spin-charge transport due to spin-orbit interaction in inhomogeneous two-dimensional electron liquids
- Intrinsic spin Hall effect in systems with striped spin-orbit coupling
- Spectral Gaps of Spin-orbit Coupled Particles in Deformed Traps
- Collective Spin-Hall Effect for Electron-Hole Gratings