Vortex patterns in a superconducting-ferromagnetic rod

Details Vortex patterns in a superconducting-ferromagnetic rod Vortex patterns in a superconducting-ferromagnetic rod

2010-01-11

arxiv.org/abs/1001.1715v1

Physics

Condensed Matter

Superconductivity

4 pages, 4 figues, Proceeding of the Sixth International Conference in School Format on Vortex Matter in Nanostructured Superc

Scientific paper

A superconducting rod with a magnetic moment on top develops vortices obtained here through 3D calculations of the Ginzburg-Landau theory. The inhomogeneity of the applied field brings new properties to the vortex patterns that vary according to the rod thickness. We find that for thin rods (disks) the vortex patterns are similar to those obtained in presence of a homogeneous magnetic field instead because they consist of giant vortex states. For thick rods novel patterns are obtained as vortices are curve lines in space that exit through the lateral surface.

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