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

## TL;DR

This paper investigates spin-charge conversion in disordered 2D electron gases without inversion symmetry, revealing quantum interference effects that lead to a universal anisotropic spin precession scattering mechanism.

## Contribution

It introduces the concept of anisotropic spin precession scattering (ASP) as a new spin-charge conversion mechanism arising from quantum interference effects.

## Key findings

- ASP is a universal spin-charge conversion mechanism.
- Quantum interference between spin-flip and skew scattering induces ASP.
- ASP complements other mechanisms like the inverse galvanic effect.

## 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.