Giant vortex states in type I superconductors simulated by Ginzburg-Landau equations

Autor:	Palonen, Heikki, Jäykkä, Juha, Paturi, Petriina
Rok vydání:	2013
Předmět:	Condensed Matter - Superconductivity
Zdroj:	J. Phys.: Condens. Matter 25 (2013) 385702
Druh dokumentu:	Working Paper
DOI:	10.1088/0953-8984/25/38/385702
Popis:	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. Comment: 11 pages, 7 figures, to be published in J. Phys.: Condens. Matter
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1308.3661 Zobrazit plný text záznamu View this record from Arxiv