Annular Vortex Solutions to the Landau-Ginzburg Equations in Mesoscopic Superconductors

TL;DR

This paper introduces new annular vortex solutions to the Landau-Ginzburg equations in mesoscopic superconductors, describing concentric ring-like supercurrent vortices that extend known vortex configurations and may influence observable device properties.

Contribution

It presents a novel class of vortex solutions with ring-like structures, expanding the understanding of vortex configurations in mesoscopic superconductors.

Findings

Descriptions of new annular vortex configurations

Potential impact on the dynamic properties of superconducting devices

Discussion on the stability and experimental implications

Abstract

New vortex solutions to the Landau-Ginzburg equations are described. These configurations, which extend the well known Abrikosov and giant magnetic vortex ones, consist of a succession of ring-like supercurrent vortices organised in a concentric pattern, possibly bound to a giant magnetic vortex then lying at their center. The dynamical and thermodynamic stability of these annular vortices is an important open issue on which hinges the direct experimental observation of such configurations. Nevertheless, annular vortices should affect indirectly specific dynamic properties of mesoscopic superconducting devices amenable to physical observation.