Oxygen mobility and structural phase transformation in Bi2Sr2CaCu2O8+delta measured by anelastic spectroscopy

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dc.contributor.authorGimenez, JMD
dc.contributor.authorGrandini, Carlos Roberto [UNESP]
dc.contributor.authorSantos, Dayse Iara dos [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-20T15:20:04Z
dc.date.available2014-05-20T15:20:04Z
dc.date.issued2004-08-01
dc.description.abstractOne of the most studied ceramic superconductors for application has been, undoubtedly, Bi2Sr2CaCu2O8+delta. Although being a multiphasic material, it has proved to have great advantages compared to other ceramic systems. Measurements of the elastic energy loss and modulus (anelastic spectroscopy) as a function of temperature call distinguish among different atomic jumps that occur inside the various phases or at different local ordering. In this paper, mechanical loss spectra of Bi2Sr2CaCu2O8+delta bar shaped samples, made by a conventional method, have been measured between 80 and 600 K, using a torsion pendulum operating in frequencies below 50 Hz, for samples annealed in vacuum up to 600 K. Possible relaxation mechanisms are proposed to explain the origin of the mechanical-loss peaks observed 300 and 500 K. (C) 2004 Elsevier B.V. All rights reserved.en
dc.description.affiliationUNESP, Grp Relaxacoes Anelasticas, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUniv São Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUnespUNESP, Grp Relaxacoes Anelasticas, BR-17033360 Bauru, SP, Brazil
dc.format.extent743-744
dc.identifierhttp://dx.doi.org/10.1016/j.physc.2004.03.074
dc.identifier.citationPhysica C-superconductivity and Its Applications. Amsterdam: Elsevier B.V., v. 408, p. 743-744, 2004.
dc.identifier.doi10.1016/j.physc.2004.03.074
dc.identifier.issn0921-4534
dc.identifier.lattes2949983867418338
dc.identifier.lattes8506867595279427
dc.identifier.orcid0000-0002-3336-309X
dc.identifier.urihttp://hdl.handle.net/11449/31417
dc.identifier.wosWOS:000224051700316
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofPhysica C: Superconductivity and its Applications
dc.relation.ispartofjcr1.453
dc.relation.ispartofsjr0,492
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectBSCCOpt
dc.subjectanelastic spectroscopypt
dc.subjectoxygen mobilitypt
dc.subjectcupratespt
dc.titleOxygen mobility and structural phase transformation in Bi2Sr2CaCu2O8+delta measured by anelastic spectroscopyen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes2949983867418338[2]
unesp.author.lattes8506867595279427
unesp.author.orcid0000-0002-3336-309X[2]
unesp.author.orcid0000-0002-9280-4334[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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