Oxygen Interstitial Dynamics in Bi(2)Sr(2)CaCu(2)O(8+delta) Oxides Measured by Mechanical Spectroscopy

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dc.contributor.authorGrandini, Carlos Roberto [UNESP]
dc.contributor.authorRuiz, S. L M [UNESP]
dc.contributor.authorSilva, M. R. [UNESP]
dc.contributor.authorGimenez, J. M. A. [UNESP]
dc.contributor.authorRubo, Elisabete Aparecida Andrello [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:26:14Z
dc.date.available2014-05-20T13:26:14Z
dc.date.issued2008-01-01
dc.description.abstractMany researchers became interested in the discovery of Bi(2)Sr(2)CaCu(2)O(8+delta) oxides with critical temperature of around 80 K. It is known that the critical temperature is related to the CuO2 planes of the material. For this reason, the study of the interstitial oxygen in these oxides is of great relevance. The samples were prepared by means of conventional solid state reactions, through the stoichiometric mixture of precursory powders. After the sinterization, the samples were submitted to measurements of density, electrical resistivity, x-ray diffraction, scanning electron microscopy and energy dispersion spectroscopy, with the objective of performing their characterization. The measurements of mechanical spectroscopy were performed by a torsion pendulum. The results show three relaxation processes in the temperature range of 200 and 700 K, with activation energy of approximately 0.9 eV, which has been attributed to the dynamics of the interstitial oxygen present in the material.en
dc.description.affiliationUNESP Grupo de Relaxações Anelásticas, 17.033-360, Bauru, SP
dc.description.affiliationUNESP Departamento de Fisica, 17.033-360, Bauru, SP
dc.description.affiliationUnespUNESP Grupo de Relaxações Anelásticas, 17.033-360, Bauru, SP
dc.description.affiliationUnespUNESP Departamento de Fisica, 17.033-360, Bauru, SP
dc.format.extent634-638
dc.identifierhttp://dx.doi.org/10.4028/www.scientific.net/MSF.591-593.634
dc.identifier.citationAdvanced Powder Technology Vi. Stafa-zurich: Trans Tech Publications Ltd, v. 591-593, p. 634-638, 2008.
dc.identifier.doi10.4028/www.scientific.net/MSF.591-593.634
dc.identifier.issn0255-5476
dc.identifier.lattes2949983867418338
dc.identifier.orcid0000-0002-3336-309X
dc.identifier.scopus2-s2.0-58149116432
dc.identifier.urihttp://hdl.handle.net/11449/132361
dc.identifier.wosWOS:000262481100108
dc.language.isoeng
dc.publisherTrans Tech Publications Ltd
dc.relation.ispartofAdvanced Powder Technology Vi
dc.relation.ispartofsjr0,180
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subject2212 Oxides
dc.subjectInterstitial oxygen
dc.subjectSuperconductivity
dc.subjectCritical temperatures
dc.subjectElectrical resistivities
dc.subjectEnergy dispersions
dc.subjectMechanical spectroscopies
dc.subjectSolid states
dc.subjectStoichiometric mixtures
dc.subjectTemperature ranges
dc.subjectTorsion pendulums
dc.subjectX-ray diffractions
dc.subjectActivation energy
dc.subjectCopper oxides
dc.subjectCritical current density (superconductivity)
dc.subjectDynamics
dc.subjectElectric conductivity
dc.subjectElectric resistance
dc.subjectLithium compounds
dc.subjectOxides
dc.subjectOxygen
dc.subjectPenetration depth (superconductivity)
dc.subjectPowders
dc.subjectScanning electron microscopy
dc.subjectSolid state reactions
dc.subjectVibrations (mechanical)
dc.subjectNonmetals
dc.titleOxygen Interstitial Dynamics in Bi(2)Sr(2)CaCu(2)O(8+delta) Oxides Measured by Mechanical Spectroscopyen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.scientific.net/
dcterms.rightsHolderTrans Tech Publications Ltd
unesp.author.lattes2949983867418338[1]
unesp.author.orcid0000-0002-3336-309X[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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