Fe K-edge X-ray absorption spectroscopy study of Pb(Fe2/3W 1/3)O3-PbTiO3 multiferroic ceramics

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dc.contributor.authorMesquita, A. [UNESP]
dc.contributor.authorFraygola, B. M.
dc.contributor.authorMastelaro, V. R.
dc.contributor.authorEiras, J. A.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-27T11:28:42Z
dc.date.available2014-05-27T11:28:42Z
dc.date.issued2013-03-21
dc.description.abstractThe present paper is a comprehensive study concerning Fe K-edge X-ray absorption spectroscopy (XAS) measurements, which were performed to characterize the local structure of (1 - x)Pb(Fe2/3W1/3)O 3-xPbTiO3 samples as a function of temperature and PbTiO3 content. Results obtained by the fits of extended X-ray absorption fine structure consist with rhombohedral symmetry for Pb(Fe 2/3W1/3)O3 composition at temperatures lower than room temperature. This result is in apparent disagreement with X-ray and neutron diffraction characterization which have been reported. This apparent disagreement is related to the fact that XAS probes the short-range order, whereas X-ray diffraction provides structural information about the average structure. Moreover, as the PbTiO3 content increases, a disorder has been detected at local structure of the FeO6 octahedron. Analysis of X-ray absorption near edge structure spectra did not show modifications in intensity nor energy of transitions. © 2013 American Institute of Physics.en
dc.description.affiliationInstituto de Geociências e Ciências Exatas Universidade Estadual Paulista, Rio Claro, SP
dc.description.affiliationGrupo de Cerâmicas Ferroelétricas Departamento de Física Universidade Federal de São Carlos, São Carlos, SP
dc.description.affiliationInstituto de Física de São Carlos Universidade de São Paulo, São Carlos, SP
dc.description.affiliationUnespInstituto de Geociências e Ciências Exatas Universidade Estadual Paulista, Rio Claro, SP
dc.identifierhttp://dx.doi.org/10.1063/1.4795505
dc.identifier.citationJournal of Applied Physics, v. 113, n. 11, 2013.
dc.identifier.doi10.1063/1.4795505
dc.identifier.file2-s2.0-84875728461.pdf
dc.identifier.issn0021-8979
dc.identifier.scopus2-s2.0-84875728461
dc.identifier.urihttp://hdl.handle.net/11449/74859
dc.identifier.wosWOS:000316545200046
dc.language.isoeng
dc.relation.ispartofJournal of Applied Physics
dc.relation.ispartofjcr2.176
dc.relation.ispartofsjr0,739
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAverage structure
dc.subjectExtended X-ray absorption fine structures
dc.subjectMultiferroic ceramics
dc.subjectRhombohedral symmetry
dc.subjectShort range orders
dc.subjectStructural information
dc.subjectX-ray absorption near-edge structure
dc.subjectX-Ray and neutron diffraction
dc.subjectAbsorption spectra
dc.subjectExtended X ray absorption fine structure spectroscopy
dc.subjectNeutron diffraction
dc.subjectX ray absorption near edge structure spectroscopy
dc.subjectX ray absorption spectroscopy
dc.subjectX ray diffraction
dc.subjectLead
dc.titleFe K-edge X-ray absorption spectroscopy study of Pb(Fe2/3W 1/3)O3-PbTiO3 multiferroic ceramicsen
dc.typeArtigo
dcterms.licensehttp://publishing.aip.org/authors/web-posting-guidelines
unesp.author.lattes2835864951583089[1]
unesp.author.orcid0000-0001-8524-0959[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claropt

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