Generation of a superconducting vortex via N\'eel skyrmions
J. Baumard, J. Cayssol, F. S. Bergeret, A. Buzdin
TL;DR
This paper demonstrates how N"eel skyrmions can induce spontaneous vortices in a superconducting thin film without external magnetic fields, by analyzing magnetic and current distributions.
Contribution
It provides a theoretical analysis of vortex generation in superconductors caused by N"eel skyrmions, a novel mechanism for vortex control.
Findings
N"eel skyrmions induce spontaneous currents in superconductors.
A vortex can form without external magnetic fields due to skyrmion influence.
Magnetic and current distributions are characterized in the model.
Abstract
We consider a type-II superconducting thin film in contact with a N\'eel skyrmion. The skyrmion induces spontaneous currents in the superconducting layer, which under the right condition generate a superconducting vortex in the absence of an external magnetic field. We compute the magnetic field and current distributions in the superconducting layer in the presence of N\'eel skyrmion.
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