Oxide spin-orbitronics: spin-charge interconversion and topological spin textures

TL;DR

This paper reviews recent advances in oxide spin-orbitronics, focusing on spin-charge interconversion mechanisms and the creation of topological spin textures like skyrmions, emphasizing the role of spin-orbit coupling in oxides.

Contribution

It provides a comprehensive overview of the emerging field of oxide spin-orbitronics, highlighting new phenomena and control methods involving spin-charge conversion and topological textures.

Findings

Spin-charge interconversion via spin Hall and Edelstein effects

Observation of topological spin textures such as skyrmions

Control of spin-orbit effects through ferroelectricity

Abstract

Quantum oxide materials possess a vast range of properties stemming from the interplay between the lattice, charge, spin and orbital degrees of freedom, in which electron correlations often play an important role. Historically, the spin-orbit coupling was rarely a dominant energy scale in oxides. It however recently came to the forefront, unleashing various exotic phenomena connected with real and reciprocal-space topology that may be harnessed in spintronics. In this article, we review the recent advances in the new field of oxide spin-orbitronics with a special focus on spin-charge interconversion from the direct and inverse spin Hall and Edelstein effects, and on the generation and observation of topological spin textures such as skyrmions. We highlight the control of spin-orbit-driven effects by ferroelectricity and give perspectives for the field.