Spin-charge conversion in disordered two-dimensional electron gases lacking inversion symmetry

Abstract

We study the spin-charge conversion mechanisms in a two-dimensional gas of electrons moving in a smooth disorder potential by accounting for both Rashba-type and Mott's skew scattering contributions. We find that quantum interference effects between spin-flip and skew scattering give rise to anisotropic spin precession scattering (ASP), a direct spin-charge conversion mechanism that was discovered in an earlier study of graphene decorated with adatoms [C. Huang \emph{et al.} Phys.~Rev.~B \textbf{94} 085414.~(2016)]. Our findings suggest that, together with other spin-charge conversion mechanisms such as the inverse galvanic effect, ASP is a fairly universal phenomenon that should be present in disordered two-dimensional systems lacking inversion symmetry.

9 pages, 2 figures

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Cited by in corpus (4)

• Nonperturbative approach to interfacial spin-orbit torques induced by Rashba effect
• Control of Spin Diffusion and Suppression of the Hanle Effect by the Coexistence of Spin and Valley Hall Effects
• Charge and spin conductivity of a two-dimensional electron gas with random Rashba interaction
• Theory of Spin Injection in Two-dimensional Metals with Proximity-Induced Spin-Orbit Coupling