Modeling the dielectric response of lanthanum modified lead zirconate titanate ferroelectric ceramics-an approach to the phase transitions in relaxor ferroelectrics

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dc.contributor.authorGarcia-Zaldivar, O.
dc.contributor.authorPelaiz-Barranco, A.
dc.contributor.authorCalderon-Pinar, F.
dc.contributor.authorFundora-Cruz, A.
dc.contributor.authorGuerra, J. D. S. [UNESP]
dc.contributor.authorHall, D. A.
dc.contributor.authorMendoza, M. E.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv La Habana
dc.contributor.institutionUniversity of Manchester
dc.contributor.institutionUniv Autonoma Puebla
dc.date.accessioned2014-05-20T13:29:46Z
dc.date.available2014-05-20T13:29:46Z
dc.date.issued2008-11-05
dc.description.abstractThe relaxor behavior of lanthanum modified lead zirconate titanate (PLZT) ferroelectric ceramics, for a La/Zr/Ti ratio of x/60/40, has been analyzed. An approximation to the dynamical behavior of the polar nano-regions (PNRs) has been discussed, taking into account a relaxation model, which considers a distribution function for the relaxation times. A good agreement between theoretical and experimental results was obtained. The behaviors of the mean relaxation time and its standard deviation with temperature were discussed, considering the correlation between the polar nano-regions and the freezing temperature. The temperature dependence of the polarization showed an anomalous behavior around a temperature, which was associated with the freezing temperature, according to the proposed model in the present work.en
dc.description.affiliationUniv Estadual Paulista, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUniv La Habana, Inst Ciência & Tecnol Mat, Fac Fis, Havana 10400, Cuba
dc.description.affiliationUniv Manchester, Sch Mat, Manchester M1 7HS, Lancs, England
dc.description.affiliationUniv Autonoma Puebla, Inst Fis, Puebla 72570, Mexico
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.sponsorshipTWAS
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipBrazilian agency
dc.description.sponsorshipICTP
dc.description.sponsorshipRoyal Society
dc.description.sponsorshipIdTWAS: 99-050
dc.description.sponsorshipIdTWAS: 02-225
dc.description.sponsorshipIdTWAS: 05-043
dc.description.sponsorshipIdFAPESP: 06/60013-5
dc.description.sponsorshipIdRoyal Society: 2007/R1
dc.format.extent7
dc.identifierhttp://dx.doi.org/10.1088/0953-8984/20/44/445230
dc.identifier.citationJournal of Physics-condensed Matter. Bristol: Iop Publishing Ltd, v. 20, n. 44, p. 7, 2008.
dc.identifier.doi10.1088/0953-8984/20/44/445230
dc.identifier.issn0953-8984
dc.identifier.urihttp://hdl.handle.net/11449/10067
dc.identifier.wosWOS:000260028500038
dc.language.isoeng
dc.publisherIop Publishing Ltd
dc.relation.ispartofJournal of Physics: Condensed Matter
dc.relation.ispartofjcr2.617
dc.relation.ispartofsjr0,875
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleModeling the dielectric response of lanthanum modified lead zirconate titanate ferroelectric ceramics-an approach to the phase transitions in relaxor ferroelectricsen
dc.typeArtigo
dcterms.licensehttp://iopscience.iop.org/info/page/openaccess
dcterms.rightsHolderIop Publishing Ltd
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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Artigos - Física e Química - FEIS