Topological Spin Hall Effect due to Magnetic Skyrmions

TL;DR

This paper theoretically predicts a topological spin Hall effect where skyrmion textures generate a transverse spin current, expanding the understanding of topological effects in spintronics.

Contribution

It introduces the concept of a topological spin Hall effect induced by magnetic skyrmions, linking real space topology to spin current generation.

Findings

Demonstrates the theoretical possibility of TSHE from skyrmion textures

Links real space topology with spin current generation

Expands topological effects in spintronics

Abstract

The intrinsic spin Hall effect (SHE) originates from the topology of the Bloch bands in momentum space. The duality between real space and momentum space calls for a spin Hall effect induced from a real space topology in analogy to the topological Hall effect (THE) of skyrmions. We theoretically demonstrate the topological spin Hall effect (TSHE) in which a pure transverse spin current is generated from a skyrmion spin texture.