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Proceedings Paper

Flux pinning in superconductor/normal metal heterostructures
Author(s): Ljiljana Dobrosavljevic-Grujic; Vesna Prokic; Dragomir Davidovic
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Paper Abstract

We have shown, within the Ginzburg-Landau theory, that the interaction between a single vortex and a normal metal microdefect in the high Tc superconducting matrix can cause high critical current densities jc. The interaction is primarily magnetic, except at very low temperatures T, where the core interaction is dominant. For a lattice of vortices commensurate with an array of defects in a parallel magnetic field H, strong magnetic pinning is obtained, with a non-monotonic critical current dependence on H, and with jc of the order of 107 - 108 A/cm2.

Paper Details

Date Published: 29 June 1994
PDF: 6 pages
Proc. SPIE 2157, Superconducting Superlattices and Multilayers, (29 June 1994); doi: 10.1117/12.179170
Show Author Affiliations
Ljiljana Dobrosavljevic-Grujic, Institute of Physics (Serbia and Montenegro)
Vesna Prokic, Univ. of Belgrade (Serbia and Montenegro)
Dragomir Davidovic, Institute of Physics (Serbia and Montenegro) and The Johns Hopkins Univ. (United States)

Published in SPIE Proceedings Vol. 2157:
Superconducting Superlattices and Multilayers
Ivan Bozovic, Editor(s)

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