Superconducting Wigner Vortex Molecule near a Magnetic Disk
Superconductivity
2009-11-07 v1
Abstract
Within the non-linear Ginzburg-Landau (GL) theory, we investigate the vortex structure in a superconducting thin film with a ferromagnetic disk on top of it. Antivortices are stabilized in shells around a central core of vortices (or a giant-vortex) with size-magnetization controlled ``magic numbers''. An equilibrium vortex phase diagram is constructed. The transition between the different vortex phases occurs through the creation of a vortex-antivortex pair under the magnetic disk edge.
Cite
@article{arxiv.cond-mat/0211547,
title = {Superconducting Wigner Vortex Molecule near a Magnetic Disk},
author = {M. V. Milosevic and F. M. Peeters},
journal= {arXiv preprint arXiv:cond-mat/0211547},
year = {2009}
}
Comments
4 pages, 4 figures. Submitted to Phys. Rev. Lett