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Dielectric relaxation and relaxor behavior in bilayered perovskites

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dc.contributor.authorGonzalez-Abreu, Y.
dc.contributor.authorPelaiz-Barranco, A.
dc.contributor.authorAraujo, E. B. [UNESP]
dc.contributor.authorFranco Junior, A.
dc.contributor.institutionUniv La Habana
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Goiás (UFG)
dc.date.accessioned2014-05-20T13:29:53Z
dc.date.available2014-05-20T13:29:53Z
dc.date.issued2009-06-29
dc.description.abstractSr(0.5)Ba(0.5)Bi(2)Nb(2)O(9) ferroelectric ceramics exhibit a complex dielectric behavior, showing typical relaxor behavior. The relaxation processes are described by the Cole-Cole model [K. S. Cole and R. H. Cole, J. Chem. Phys. 9, 341 (1941)]. At temperatures below 490 K, the dielectric relaxation is associated to the relaxorlike ferroelectric behavior, resulting from the inhomogeneous distribution of barium due to its preference for the bismuth site. Above that, the interaction between the dipoles, which form the microdomains above the relaxor ferroelectric peak and the electrons, which are due to the ionization of the oxygen vacancies are discussed as the probable origin of the relaxation.en
dc.description.affiliationUniv La Habana, Fac Fis, Inst Ciência & Tecnol Mat, Havana 10400, Cuba
dc.description.affiliationUniv Estadual Paulista UNESP, Dept Quim & Fis, BR-15385000 São Paulo, Brazil
dc.description.affiliationUniv Fed Goias, Inst Fis, BR-74001970 Goiania, Go, Brazil
dc.description.affiliationUnespUniv Estadual Paulista UNESP, Dept Quim & Fis, BR-15385000 São Paulo, Brazil
dc.description.sponsorshipICTP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCNPq: 450070/2008-5
dc.description.sponsorshipIdCNPq: 301382/2006-9
dc.description.sponsorshipIdFAPESP: 07/05302-4
dc.description.sponsorshipIdFAPESP: 07/00183-7
dc.format.extent3
dc.identifierhttp://dx.doi.org/10.1063/1.3168651
dc.identifier.citationApplied Physics Letters. Melville: Amer Inst Physics, v. 94, n. 26, p. 3, 2009.
dc.identifier.doi10.1063/1.3168651
dc.identifier.fileWOS000267697300036.pdf
dc.identifier.issn0003-6951
dc.identifier.lattes6725982228402054
dc.identifier.urihttp://hdl.handle.net/11449/10135
dc.identifier.wosWOS:000267697300036
dc.language.isoeng
dc.publisherAmerican Institute of Physics (AIP)
dc.relation.ispartofApplied Physics Letters
dc.relation.ispartofjcr3.495
dc.relation.ispartofsjr1,382
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectbarium compoundsen
dc.subjectbismuth compoundsen
dc.subjectdielectric relaxationen
dc.subjectelectric domainsen
dc.subjectferroelectric ceramicsen
dc.subjectrelaxor ferroelectricsen
dc.subjectstrontium compoundsen
dc.subjectvacancies (crystal)en
dc.titleDielectric relaxation and relaxor behavior in bilayered perovskitesen
dc.typeArtigo
dcterms.licensehttp://www.aip.org/pubservs/web_posting_guidelines.html
dcterms.rightsHolderAmer Inst Physics
dspace.entity.typePublication
unesp.author.lattes6725982228402054
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Ilha Solteirapt
unesp.departmentFísica e Química - FEISpt

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Ilha Solteira - FEIS - Faculdade de Engenharia