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Author Griessen, R.; Wen Hai-Hu; Van Dalen, A.J.J.; Dam, B.; Rector, J.; Schnack, H.G.; Libbrecht, S.; Osquiguil, E.; Bruynseraede, Y.
Title Evidence for mean free path fluctuation induced pinning in YBa2Cu3O7 and YBa2Cu4O8 films Type Journal Article
Year 1994 Publication Physical Review Letters Abbreviated Journal
Volume 72 Issue 12 Pages 1910-1913
Abstract The critical current jc and the pinning energy Uc have been determined for three types of yttrium-based superconducting films from current js and dynamic relaxation Q=d lnjs/d ln(dB/dt) data by means of the generalized inversion scheme. For B<2 T and T<80 K the temperature dependence of jc and Uc for all films is found to be in excellent agreement with a model of single vortices pinned by randomly distributed weak pinning centers via spatial fluctuations of the charge carrier mean free path. Pinning due to spatial fluctuations of Tc is not observed.
Address Laboratorium voor Vaste Stof-Fysika en Magnetisme, Katholieke Universiteit Leuven, 4001-Leuven, Belgium
Corporate Author Thesis
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ISSN 00319007 (ISSN) ISBN Medium
Area Expedition Conference
Notes Cited By (since 1996): 103; Export Date: 17 April 2009; Source: Scopus; doi: 10.1103/PhysRevLett.72.1910; Language of Original Document: English; Correspondence Address: Griessen, R.; Faculty of Physics and Astronomy; Free University 1081 HV Amsterdam, Netherlands Approved (up) no
Call Number BT @ osquigui @ Serial 389
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