Self-fields in thin superconducting tapes: Implications for the thickness effect in coated conductors

TitleSelf-fields in thin superconducting tapes: Implications for the thickness effect in coated conductors
Publication TypeJournal Article
Year of Publication2010
AuthorsSanchez A, Navau C, Del-Valle N, Chen DX, Clem JR
Journal TitleApplied Physics Letters
Volume96
Pages-
Date Published02/15
ISBN Number0003-6951
Accession NumberISI:000274758100053
Keywordsbarium compounds, critical current density (superconductivity), critical-current density, dependence, deposition, films, high-temperature superconductors, magnetization, superconducting tapes, superconducting thin films, yba2cu3o7-delta, yttrium compounds
Abstract

A large decrease in transport current density has been observed in high-temperature superconducting films for increasing film thickness. In this work we theoretically explain the nature and the ubiquitous presence of this so-called thickness effect by analyzing the self-field created by the transport currents in the superconductor, assuming a realistic field-dependent critical-current density J(c). This knowledge can help in finding ways to improve transport current in superconducting films.

URL<Go to ISI>://000274758100053
DOIArtn 072510Doi 10.1063/1.3315893