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Scaling behavior of flux-pinning force in doped Y-Ba-Cu-O thin films

✍ Scribed by L.W. Song; E. Narumi; M. Yang; F. Yang; D.T. Shaw; Y.H. Kao

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 480 KB
Volume: 181
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(91)90106-9

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✦ Synopsis

The flux-pinning force density Fv= IJc)<nl in thin films of Y-Ba-Cu-O has been studied as a function of magnetic field, temperature, and chemical doping. Two peaks in Fp were found with field perpendicular to the film. The field dependence of Fp around each peak is shown to follow a scaling law in terms of properly normalized variables which account for all the variations with temperature and chemical doping in the cases investigated. This scaling behavior thus greatly simplifies the usual complex description of flux pinning in high temperature superconductors.

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