Investigation of microwave dielectric relaxation solid state process in the antiferroelectric phase of NaNbO3 ceramics

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dc.contributor.authorLente, M. H.
dc.contributor.authorGuerra, JDS
dc.contributor.authorEiras, J. A.
dc.contributor.authorLanfredi, S.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:22:54Z
dc.date.available2014-05-20T13:22:54Z
dc.date.issued2004-08-01
dc.description.abstractThis letter reports microwave dielectric measurements performed in the antiferroelectric phase of NaNbO3 ceramics from 100 to 450 K. Remarkable dielectric relaxation was found within the antiferroelectric phase and in the vicinity of the ferroelectric-antiferroelectric phase transition. Such dielectric relaxation process was associated with relaxations of polar nanoregions with strong relaxor-like characteristic. In addition, the microwave dielectric measurements also revealed an unexpected and unusual anomaly in the relaxation strength, which was related to a disruption of the antiferroelectric order induced by a possible AFE-AFE phase transition. (C) 2004 Elsevier Ltd. All rights reserved.en
dc.description.affiliationUniv Fed Sao Carlos, Dept Fis, Grp Ceram Ferroeletr, BR-13565970 Sao Carlos, SP, Brazil
dc.description.affiliationUNESP, Dept Fis Quim & Biol, FCT, BR-19060900 Presidente Prudente, SP, Brazil
dc.description.affiliationUnespUNESP, Dept Fis Quim & Biol, FCT, BR-19060900 Presidente Prudente, SP, Brazil
dc.format.extent279-282
dc.identifierhttp://dx.doi.org/10.1016/j.ssc.2004.05.035
dc.identifier.citationSolid State Communications. Oxford: Pergamon-Elsevier B.V., v. 131, n. 5, p. 279-282, 2004.
dc.identifier.doi10.1016/j.ssc.2004.05.035
dc.identifier.issn0038-1098
dc.identifier.urihttp://hdl.handle.net/11449/6799
dc.identifier.wosWOS:000223011600001
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofSolid State Communications
dc.relation.ispartofjcr1.549
dc.relation.ispartofsjr0,535
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectantiferroelectricspt
dc.subjectdielectric relaxationpt
dc.subjectmicrowavept
dc.subjectrelaxorpt
dc.titleInvestigation of microwave dielectric relaxation solid state process in the antiferroelectric phase of NaNbO3 ceramicsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0002-6432-5408[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudentept
unesp.departmentFísica, Química e Biologia - FCTpt

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