Title: Vortex patterns and nucleation of superconductivity in mesoscopic rectangles and in hybrid superconductor/ferromagnet structures
Authors: Moshchalkov, Victor
Morelle, Mathieu
Teniers, Gerd
Golubovic, Dusan #
Issue Date: Aug-2004
Publisher: Springer
Series Title: European physical journal b vol:40 issue:4 pages:471-478
Abstract: Nucleation of superconductivity and vortex patterns have been studied in mesoscopic samples providing the crossover between square and rectangular geometries. The measured nucleation line, T-c (H), has been analyzed in the framework of the linearized Ginzburg-Landau theory. A very good agreement has been found between the theoretical T-c (H) boundary and the experimental data for rectangles with different aspect ratios. The superconductor/ferromagnet hybrids, such as magnetic Co/Pd dot in a superconducting loop and the dot on top of a superconducting disk have also been investigated. Pronounced effects of the dot on the T-c (H) boundary have been found, including strong asymmetry with respect to the field polarity.
ISSN: 1434-6028
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
# (joint) last author

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