delta-biased Josephson tunnel junctions

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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Abstract: The behavior of a long Josephson tunnel junction drastically depends on the distribution of the dc bias current. We investigate the case in which the bias current is fed in the central point of a one-dimensional junction. Such junction configuration has been recently used to detect the persistent currents circulating in a superconducting loop. Analytical and numerical results indicate that the presence of fractional vortices leads to remarkable differences from the conventional case of uniformly distributed dc bias current. The theoretical findings are supported by detailed measurements on a number of delta-biased samples having different electrical and geometrical parameters.
Original languageEnglish
JournalPhysical Review B (Condensed Matter and Materials Physics)
Publication date2010
Volume81
Issue5
Pages054506
ISSN1098-0121
DOIs
StatePublished

Bibliographical note

Copyright (2010) American Physical Society

CitationsWeb of Science® Times Cited: 3

Keywords

  • VORTEX STRUCTURE, PATTERNS, ZERO-FIELD STEPS
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