Giant vortex states in type I superconductors simulated by Ginzburg-Landau equations
2013 (English)In: Journal of Physics: Condensed Matter, ISSN 0953-8984, E-ISSN 1361-648X, Vol. 25, no 38, 385702- p.Article in journal (Refereed) Published
The quantization of magnetic flux in superconductors is usually seen as vortices penetrating the sample. While vortices are unstable in bulk type I superconductors, restricting the superconductor causes a variety of vortex structures to appear. We present a systematic study of giant vortex states in type I superconductors obtained by numerically solving the Ginzburg-Landau equations. The size of the vortices is seen to increase with decreasing film thickness. In type I superconductors, giant vortices appear at intermediate thicknesses but they do not form a well-defined vortex lattice. In the thinnest type I films, singly quantized vortices seem to be stabilized by the geometry of the sample instead of an increase in the effective Ginzburg-Landau parameter.
Place, publisher, year, edition, pages
2013. Vol. 25, no 38, 385702- p.
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:su:diva-94730DOI: 10.1088/0953-8984/25/38/385702ISI: 000323816400019OAI: oai:DiVA.org:su-94730DiVA: diva2:655137
The Jenny and Antti Wihuri Foundation2013-10-102013-10-092013-10-10Bibliographically approved