Multilevel granular structure and its coupling distribution in melt-textured YBa2Cu3O7-delta

dc.creatorAraujo-Moreira, FM
dc.creatorOrtiz, WA
dc.creatorde Lima, OF
dc.date1999
dc.date36892
dc.date2014-12-02T16:25:19Z
dc.date2015-11-26T17:21:48Z
dc.date2014-12-02T16:25:19Z
dc.date2015-11-26T17:21:48Z
dc.date.accessioned2018-03-29T00:09:16Z
dc.date.available2018-03-29T00:09:16Z
dc.identifierPhysica C. Elsevier Science Bv, v. 311, n. 41671, n. 98, n. 106, 1999.
dc.identifier0921-4534
dc.identifierWOS:000078004000015
dc.identifier10.1016/S0921-4534(98)00618-2
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/82161
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/82161
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/82161
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1283451
dc.descriptionWe have performed AC magnetic susceptibility measurements as a function of the excitation magnetic field, h, for two YBa2Cu3O7-delta polycrystalline samples using a high-sensitivity home-made susceptometer, for fixed values of the temperature, T, and the external DC magnetic field, H, One of the samples is melt-textured and for H < 52.5 Oe it presents features that can be associated with a multilevel granular structure. Using an effective medium model, we have determined the critical current density distribution associated with the multilevel granular structure. The average critical current density in each intergranular region was then calculated by applying Bean's critical state model. (C) 1999 Elsevier Science B.V. All rights reserved.
dc.description311
dc.description41671
dc.description98
dc.description106
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationPhysica C
dc.relationPhysica C
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectAC susceptibility
dc.subjectcritical current density
dc.subjectgranular superconductivity
dc.subjectcouplings distribution
dc.subjectHigh-tc Superconductors
dc.subjectHigh-temperature Superconductors
dc.subjectCritical-state Model
dc.subjectCritical-current-density
dc.subjectAc-susceptibility Data
dc.subjectHigh-jc
dc.subjectSingle
dc.subjectYba2cu3o6+x
dc.subjectDependence
dc.subjectBoundaries
dc.titleMultilevel granular structure and its coupling distribution in melt-textured YBa2Cu3O7-delta
dc.typeArtículos de revistas


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