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dc.contributor.authorNobre, MAL
dc.contributor.authorLanfredi, S.
dc.date.accessioned2014-05-20T15:28:09Z
dc.date.available2014-05-20T15:28:09Z
dc.date.issued2003-05-01
dc.identifierhttp://dx.doi.org/10.1063/1.1564281
dc.identifier.citationJournal of Applied Physics. Melville: Amer Inst Physics, v. 93, n. 9, p. 5557-5562, 2003.
dc.identifier.issn0021-8979
dc.identifier.urihttp://hdl.handle.net/11449/38021
dc.description.abstractThe electric and dielectric properties of the grain boundary of Na0.85Li0.15NbO3 lead-free ferroelectric-semiconductor perovskite were investigated. The impedance spectroscopy was carried out as a function of a thermal cycle. The sodium lithium niobate was synthesized by a chemical route based on the evaporation method. Dense ceramic, relative density of 97%, was prepared at 1423 K for 2 h in air atmosphere. ac measurements were carried out in the frequency range of 5 Hz-13 MHz and from 673 to 1023 K. Theoretical adjust of the impedance data was performed to deriving the electric parameters of the grain boundary. The electric conductivity follows the Arrhenius law, with activation energy values equal to 1.55 and 1.54 eV for heating and cooling cycle, respectively. The nonferroelectric state of the grain boundary and its correlation with symmetry are discussed in the temperature domain. (C) 2003 American Institute of Physics.en
dc.format.extent5557-5562
dc.language.isoeng
dc.publisherAmerican Institute of Physics (AIP)
dc.relation.ispartofJournal of Applied Physics
dc.sourceWeb of Science
dc.titleFerroelectric state analysis in grain boundary of Na0.85Li0.15NbO3 ceramicen
dc.typeArtigo
dcterms.licensehttp://publishing.aip.org/authors/web-posting-guidelines
dcterms.rightsHolderAmer Inst Physics
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationUNESP, FCT, BR-19060900 São Paulo, Brazil
dc.description.affiliationUnespUNESP, FCT, BR-19060900 São Paulo, Brazil
dc.identifier.doi10.1063/1.1564281
dc.identifier.wosWOS:000182296700089
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências e Tecnologia, Presidente Prudentept
dc.identifier.fileWOS000182296700089.pdf
dc.identifier.lattes7201928600704530
unesp.author.lattes7201928600704530
unesp.author.orcid0000-0003-4843-3975[1]
dc.relation.ispartofjcr2.176
dc.relation.ispartofsjr0,739
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