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Investigation of the dielectric relaxation processes in PbZr0.65Ti0.35O3-BaFe12O19 multiferroic ceramic composites

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dc.contributor.authorGuerra, J. D. S.
dc.contributor.authorSilva, A. C. [UNESP]
dc.contributor.authorM'Peko, J-C
dc.contributor.authorHernandes, A. C.
dc.contributor.authorGuo, R.
dc.contributor.authorBhalla, A. S.
dc.contributor.institutionUniv Texas San Antonio
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2015-03-18T15:53:40Z
dc.date.available2015-03-18T15:53:40Z
dc.date.issued2014-12-15
dc.description.abstractThe dielectric relaxation processes have been investigated in multiferroic ceramic composites based on the ferroelectric PbZr0.65Ti0.35O3 (PZT) and ferrimagnetic BaFe12O19 (BaM) systems. The frequency dispersion of the complex dielectric permittivity was analyzed over wide frequency and temperature ranges, and the effect of BaM content is depicted. The activation energies for the relaxation processes were also obtained for all the studied compositions and the results suggest the oxygen vacancies-related hopping mechanism to be responsible for the observed behaviors in the studied composites. Furthermore, an anomalous behavior in the activation energy has been observed with the increase of the BaM concentration. The obtained results are discussed within the framework of current models reported in the literature for dielectric relaxation processes. (C) 2014 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Texas San Antonio, Coll Engn, Dept Elect & Comp Engn, Multifunct Elect Mat & Devices Res Lab, San Antonio, TX 78249 USA
dc.description.affiliationUniv Fed Uberlandia, Inst Fis, Grp Ferroeletr & Mat Multifunc, BR-38408100 Uberlandia, MG, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Fis Sao Carlos, Grp Crescimento Cristais & Mat Ceram CCMC, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.sponsorshipINAMM/NSF
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdINAMM/NSF0884081
dc.format.extent841-845
dc.identifierhttp://dx.doi.org/10.1016/j.matchemphys.2014.08.059
dc.identifier.citationMaterials Chemistry And Physics. Lausanne: Elsevier Science Sa, v. 148, n. 3, p. 841-845, 2014.
dc.identifier.doi10.1016/j.matchemphys.2014.08.059
dc.identifier.issn0254-0584
dc.identifier.urihttp://hdl.handle.net/11449/116651
dc.identifier.wosWOS:000344429700051
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofMaterials Chemistry And Physics
dc.relation.ispartofjcr2.210
dc.relation.ispartofsjr0,615
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCeramicsen
dc.subjectChemical synthesisen
dc.subjectFerroelectricityen
dc.subjectDielectric propertiesen
dc.titleInvestigation of the dielectric relaxation processes in PbZr0.65Ti0.35O3-BaFe12O19 multiferroic ceramic compositesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
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