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Dielectric and structural characterization of Pb1-xAxZr0.40Ti0.60O3 (A = Sr, Ca) ferroelectric ceramics

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dc.contributor.authorMesquita, A. [UNESP]
dc.contributor.authorMichalowicz, A.
dc.contributor.authorMastelaro, V. R.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversité Paris Est
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-27T11:30:08Z
dc.date.available2014-05-27T11:30:08Z
dc.date.issued2013-08-06
dc.description.abstractThis paper reports the influence of Sr- and Ca-substitution on the structural and ferroelectric properties of Pb1-xSrxZr0.40Ti0.60O3 (PSZT) and Pb1-xCaxZr0.40Ti0.60O3 (PCZT) ceramic systems. The dielectric measurements show that these substitutions cause a diffuse behavior in the dielectric permittivity curves for all samples. According to the X-ray absorption near-edge structure (XANES) spectra collected at Ti K- and LIII-edge, when Pb was replaced by Sr or Ca, a decrease in the local distortion around Ti atoms in the TiO6 octahedron could be observed. The O K-edge XANES spectra also revealed that the hybridization between O 2p and Pb 6sp states decreased as the amount of Sr or Ca atoms increased. Based on these results, it was possible to ascertain that the ferroelectric behavior in PSZT and PCZT samples bears a close correlation to the hybridization weakening between O 2p and Pb 6 sp states. © 2013 by American Scientific Publishers.en
dc.description.affiliationInstituto de Geociências e Ciências Exatas Departamento de Física Universidade Estadual Paulista, Rio Claro, SP, 13506-900
dc.description.affiliationInstitut de Chimie et des Materiaux Paris Est CNRS Université Paris Est, 94320 Thiais
dc.description.affiliationInstituto de Física de São Carlos Universidade de SÃo Paulo, São Carlos, SP, 13566-590
dc.description.affiliationUnespInstituto de Geociências e Ciências Exatas Departamento de Física Universidade Estadual Paulista, Rio Claro, SP, 13506-900
dc.format.extent1264-1270
dc.identifierhttp://dx.doi.org/10.1166/sam.2013.1581
dc.identifier.citationScience of Advanced Materials, v. 5, n. 9, p. 1264-1270, 2013.
dc.identifier.doi10.1166/sam.2013.1581
dc.identifier.issn1947-2935
dc.identifier.issn1947-2943
dc.identifier.scopus2-s2.0-84880933959
dc.identifier.urihttp://hdl.handle.net/11449/76229
dc.identifier.wosWOS:000323356100016
dc.language.isoeng
dc.relation.ispartofScience of Advanced Materials
dc.relation.ispartofjcr1.318
dc.relation.ispartofsjr0,322
dc.relation.ispartofsjr0,322
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectDielectric permittivity
dc.subjectFerroelectrics
dc.subjectLead zirconate titanate
dc.subjectPCZT
dc.subjectPSZT
dc.subjectPZT
dc.subjectXANES
dc.titleDielectric and structural characterization of Pb1-xAxZr0.40Ti0.60O3 (A = Sr, Ca) ferroelectric ceramicsen
dc.typeArtigo
dcterms.licensehttp://www.ingentaconnect.com/about/terms
dspace.entity.typePublication
unesp.author.lattes2835864951583089[1]
unesp.author.orcid0000-0002-6512-2530[3]
unesp.author.orcid0000-0001-8524-0959[1]
unesp.author.orcid0000-0001-9512-4214[3]
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Geociências e Ciências Exatas, Rio Claropt
unesp.departmentFísica - IGCEpt

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Rio Claro - IGCE - Instituto de Geociências e Ciências Exatas