Vortex configurations in finite thin superconductors
Abstract
We consider the vortex structure in finite thin superconducting samples. In such finite samples there is a competition between the Abrikosov vortex distribution, as being the lowest energy configuration in infinite superconducting thin films, and the sample boundary that tries to impose its geometry on the vortex distribution. Therefore, depending on the size and geometry, different vortex configurations can be possible; i.e. the multivortex state, the giant vortex state and a combination of both states. We solve the nonlinear Ginzburg-Landau equations selfconsistently, taking into account the bending of the magnetic field lines around the sample. We discuss the dependence of the vortex state on the shape and the size of the sample and on the presence of pinning centers/defects in the sample. The theoretical vortex configurations will be compared as much as possible with experimental vortex structures.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 2004
- Bibcode:
- 2004APS..MARP12008B