The Effect of Pearl Vortices on the Shape and Position of N\'eel-Type Skyrmions in Superconductor-Chiral Ferromagnet Heterostructures

TL;DR

This paper reviews recent theoretical and experimental research on how superconducting vortices influence the size, shape, and chirality of Ne9el-type skyrmions in superconductor-chiral ferromagnet heterostructures, highlighting key effects and findings.

Contribution

It provides a comprehensive overview of analytical, numerical, and experimental studies on vortex-induced modifications of skyrmions in heterostructures.

Findings

Superconducting vortices can significantly increase skyrmion radius.

Vortex magnetic fields can alter skyrmion chirality in coaxial configurations.

Eccentric vortex configurations modify skyrmion shape.

Abstract

This review presents recent work carried out at the Landau Institute for Theoretical Physics of the Russian Academy of Sciences on the study of the effect of superconducting vortices on the shape and position of N\'eel-type skyrmions in superconductor--chiral ferromagnet heterostructures. Based on analytical and numerical approaches, a number of effects caused by the inhomogeneous magnetic field of the vortex have been predicted: a significant increase in the skyrmion radius, a change in its chirality in the case of a coaxial configuration of the vortex and skyrmion, and modification of the skyrmion shape in the case of an eccentric configuration. Recent experiments studying these effects are discussed.