Skew scattering in dilute ferromagnetic alloys

TL;DR

This paper investigates skew scattering mechanisms in dilute ferromagnetic alloys using first-principles calculations, aiming to identify chemical trends and simple rules for large skew scattering related to impurity and host states at the Fermi surface.

Contribution

It provides a detailed analysis of skew scattering in ferromagnetic alloys from first principles, highlighting chemical trends and the interplay of spin and anomalous Hall effects.

Findings

Identification of chemical trends influencing skew scattering

Benchmarking of three different ab initio methods

Insights into the interplay of spin and anomalous Hall effects

Abstract

The challenging problem of skew scattering for Hall effects in dilute ferromagnetic alloys, with intertwined effects of spin-orbit coupling, magnetism and impurity scattering, is studied here from first principles. Our main aim is to identify chemical trends and work out simple rules for large skew scattering in terms of the impurity and host states at the Fermi surface, with particular emphasis on the interplay of the spin and anomalous Hall effects in one and the same system. The predicted trends are benchmarked by referring to three different \emph{ab initio} methods based on different approximations with respect to the electronic structure and transport properties.