Flux Vortex Explosion in Superconductors

Flux vortices are a very interesting phenomenon in condensed matter physics. A flux vortex (fluxon) is a quantized amount of magnetic flux that is contained within a swirling super-current. They undergo many curious effects and various regimes. We investigated an interfacial superconductor and observed a transition in the current-resistance and temperature-resistance which indicates Likharev vortex explosion. This explosion occurs as the coherence length within the material becomes greater than the size of the sample itself. Effectively, this chokes the super-current and causes the vortex to grow and then explode when it exceeds the bounds of the material..