Single vortices observed as they enter NbSe
arXiv:cond-mat/0307248 · doi:10.1016/j.physc.2004.03.070
Abstract
We observe single vortices as they penetrate the edge of a superconductor using a high-sensitivity magneto-optical microscope. The vortices leap across a gap near the edge, a distance that decreases with increasing applied field and sample thickness. This behaviour can be explained by the combined effect of the geometrical barrier and bulk pinning.
2 pages, 1 figure, M2S-Rio proceedings