STRONG PINNING BY CORRELATED AND POINT DISORDER IN YBa2Cu3O7-d THIN FILMS

Authors present a study of the Jc of YBa2Cu3O7-d thin films grown by PLD. Among the salient features are the total absence of any traits characteristic for pinning by extended linear defects, and an unexpected increase of the Jc with film thickness. The critical current dependence of Jc on thickness...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2002-01, Vol.369 (1-4), p.240-244
Main Authors: Abal'osheva, I, Abal'oshev, A, Gierlowski, P, Lewandowski, S J, Van der Beek, C J, Indenbom, M V
Format: Article
Language:English
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Summary:Authors present a study of the Jc of YBa2Cu3O7-d thin films grown by PLD. Among the salient features are the total absence of any traits characteristic for pinning by extended linear defects, and an unexpected increase of the Jc with film thickness. The critical current dependence of Jc on thickness is correlated with the field dependence of the same quantity; thicknesses of both are well described by extending to finite film thickness the Ovchinnikov-Ivlev theory of strong pinning. 16 refs.
ISSN:0921-4534