Superfluid spin transport in magnetically ordered solids

TL;DR

This paper reviews the theoretical foundations and experimental evidence of long-distance spin superfluid transport in ferro- and antiferromagnetic solids, highlighting topological aspects, the Landau criterion, and phase slips.

Contribution

It provides a comprehensive overview of the theory and experimental status of spin superfluidity in magnetic solids, emphasizing new insights into topological and dynamical mechanisms.

Findings

Evidence of spin superfluidity reported in experiments

Theoretical analysis of topology and phase slips in spin transport

Identification of conditions for long-distance spin transport

Abstract

The paper reviews the theory of the long-distance spin superfluid transport in solid ferro- and antiferromagnets based on the analysis of the topology, the Landau criterion, and phase slips. Experiments reporting evidence of the existence of spin superfluidity are also overviewed.