Magnetic field at the center of a vortex: a new criterion for the classification of the superconductors

TL;DR

This paper introduces a new criterion based on the magnetic field ratio at the vortex core center for classifying superconductors according to their magnetic response, linking vortex stability to superconductor type.

Contribution

It establishes a novel relationship between vortex stability and magnetic field ratios, offering a new classification criterion for superconductors.

Findings

Vortex stability correlates with the ratio of magnetic field at the vortex core to the critical field.

The new criterion helps distinguish superconductor types based on magnetic response.

Provides a theoretical basis for superconductor classification using vortex properties.

Abstract

Magnetic response of a superconductor depends on the thermodynamic stability of vortex in the material. Here we show that the vortex stability has a close relation with the ratio of the magnetic field at the vortex core center to the thermodynamic critical field. This finding provides a new criterion for the classification of the superconductors according to their magnetic responses.