Magnetic field of an in-plane vortex outside a layered superconductor

TL;DR

This paper derives analytical expressions for the magnetic fields of an in-plane vortex in layered superconductors, accounting for flux spreading effects, and compares these with experimental data to improve understanding of vortex behavior.

Contribution

It provides new solutions to London's equations for in-plane vortices, including flux spreading effects, which were not previously analytically described.

Findings

Flux spreading can alter the apparent vortex size by up to 30%.

Derived expressions match experimental observations.

Enhanced understanding of vortex magnetic fields in layered superconductors.

Abstract

We present the solution to London's equations for the magnetic fields of a vortex oriented parallel to the plane, and normal to a crystal face, of a layered superconductor. These expressions account for flux spreading at the superconducting surface, which can change the apparent size of the vortex along the planes by as much as 30%. We compare these expressions with experimental results.