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Type: Artigo de periódico
Title: Scaling Analysis Of Magnetization Curves Based On Collective Flux Creep For Ybco
Author: Ribeiro R.A.
De Lima O.F.
Abstract: We have explored a new way of interpreting relaxation effects in magnetization curves taken as a function of temperature, for several fixed magnetic fields, in field-cooling-warming experiments using YBa2Cu3O7-δ sample. The thermally activated motion of vortices was studied, through a scaling analysis based on collective pinning theory. An intriguing monotonic increase of diamagnetism, while the sample is heated under an applied field, was explained by a relaxation process such that flux exit prevails over flux entry into the sample. © 2001 Elsevier Science B.V.
Rights: fechado
Identifier DOI: 10.1016/S0921-4534(01)00069-7
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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