Interaction of a Neel-type skyrmion and a superconducting vortex

Superconductor-ferromagnet heterostructures hosting vortices and skyrmions are new area of an interplay between superconductivity and magnetism. We study an interaction of a Neel-type skyrmion and a Pearl vortex in thin heterostructures due to stray fields. Surprisingly, we find that it can be energ...

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Bibliographic Details
Published in:arXiv.org 2021-05
Main Authors: Andriyakhina, E S, Burmistrov, I S
Format: Article
Language:English
Subjects:
Ferromagnetism
Heterostructures
Hypothetical particles
Magnetism
Particle theory
Superconductivity
Vortices
Online Access:Get full text
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Summary:Superconductor-ferromagnet heterostructures hosting vortices and skyrmions are new area of an interplay between superconductivity and magnetism. We study an interaction of a Neel-type skyrmion and a Pearl vortex in thin heterostructures due to stray fields. Surprisingly, we find that it can be energetically favorable for the Pearl vortex to be situated at some nonzero distance from the center of the Neel-type skyrmion. The presence of a vortex-antivortex pair is found to result in increase of the skyrmion radius. Our theory predicts that a spontaneous generation of a vortex-anti-vortex pair is possible under some conditions in the presence of a Neel-type skyrmion.
ISSN:2331-8422
DOI:10.48550/arxiv.2102.05434