Chiral Skyrmionic matter in non-centrosymmetric magnets

TL;DR

This paper reviews the properties and physical nature of chiral Skyrmions in non-centrosymmetric magnets, highlighting recent experimental observations of their behavior in cubic helimagnets and discussing their magnetic-field-driven evolution.

Contribution

It provides a comprehensive review of theoretical and experimental insights into chiral Skyrmions, emphasizing their physical properties and recent experimental findings in cubic helimagnets.

Findings

Direct observation of Skyrmions in cubic helimagnets

Analysis of magnetic-field-driven Skyrmion evolution

Elucidation of Skyrmion physical nature

Abstract

Axisymmetric magnetic strings with a fixed sense of rotation and nanometer sizes (chiral magnetic vortices or Skyrmions) have been predicted to exist in a large group of non-centrosymmetric crystals more than two decades ago. Recently these extraordinary magnetic states have been directly observed in thin layers of cubic helimagnet (Fe,Co)Si. In this report we apply our earlier theoretical findings to review main properties of chiral Skyrmions, to elucidate their physical nature, and to analyse these recent experimental results on magnetic-field-driven evolution of Skyrmions and helicoids in chiral helimagnets.