Mesoscopic structure evidenced by AC dielectric nonlinearities in Sr(0.75)Ba(0.25)Nb(2)O(6) relaxor ferroelectric thin films

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dc.contributor.authorSantos, I. A.
dc.contributor.authorGuerra, J. de Los S. [UNESP]
dc.contributor.authorAraujo, E. B. [UNESP]
dc.contributor.authorMendes, R. G.
dc.contributor.authorEiras, J. A.
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2014-05-20T13:29:48Z
dc.date.available2014-05-20T13:29:48Z
dc.date.issued2008-04-02
dc.description.abstractThe AC electric field and temperature dependences of the dielectric permittivity for strontium barium niobate (Sr(0.75)Ba(0.25)Nb(2)O(6)) relaxor ferroelectric thin films have been investigated. The results indicate the existence of a true mesoscopic structure evidenced by the nonlinear dielectric response of these films, which is similar to those observed for bulk relaxor ferroelectrics. A tendency for a temperature dependent crossover from a linear to a quadratic behaviour of the dielectric nonlinearity was observed, indicating an evolution from paraelectric to glass-like behaviour on cooling the samples towards the freezing temperature transition.en
dc.description.affiliationUniversidade Estadual de Maringá (UEM), Dept Fis, BR-87020900 Maringa, PR, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Quim Fis, BR-15385000 Solteira, SP, Brazil
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Fis, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim Fis, BR-15385000 Solteira, SP, Brazil
dc.format.extent4
dc.identifierhttp://dx.doi.org/10.1088/0953-8984/20/13/135209
dc.identifier.citationJournal of Physics-condensed Matter. Bristol: Iop Publishing Ltd, v. 20, n. 13, p. 4, 2008.
dc.identifier.doi10.1088/0953-8984/20/13/135209
dc.identifier.issn0953-8984
dc.identifier.lattes6725982228402054
dc.identifier.urihttp://hdl.handle.net/11449/10092
dc.identifier.wosWOS:000254174900015
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.titleMesoscopic structure evidenced by AC dielectric nonlinearities in Sr(0.75)Ba(0.25)Nb(2)O(6) relaxor ferroelectric thin filmsen
dc.typeArtigo
dcterms.licensehttp://iopscience.iop.org/info/page/openaccess
dcterms.rightsHolderIop Publishing Ltd
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