IMPEDANCE CHARACTERISTICS of La3/2Bi3/2Fe5O12 CERAMICS

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dc.contributor.authorJawahar, K.
dc.contributor.authorBehera, Banarji [UNESP]
dc.contributor.authorChoudhary, R. N. P.
dc.contributor.institutionIndian Inst Technol
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:29:46Z
dc.date.available2014-05-20T13:29:46Z
dc.date.issued2009-10-20
dc.description.abstractPolycrystalline La3/2Bi3/2Fe5O12 (LBIO) compound was prepared by a high-temperature solid-state reaction technique. The complex impedance of LBIO was measured over a wide temperature (i.e., room temperature to 500 C) and frequencies (i.e., 10(2)-10(6) Hz) ranges. This study takes advantage of plotting ac data simultaneously in the form of impedance and modulus spectroscopic plots and obey non-Debye type of relaxation process. The Nyquist's plot showed the presence of grain effects in the material at high temperature. The ac conductivity spectrum was found to obey Jonscher's universal power law. The dc conductivity was found to increase with rise in temperature. The activation energy of the compound was found to be 0.24 and 0.51 eV in the low and high-temperature region, respectively, for conduction process.en
dc.description.affiliationIndian Inst Technol, Dept Phys & Meteorol, Kharagpur 721302, W Bengal, India
dc.description.affiliationUniv Estadual Paulista, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.format.extent5179-5189
dc.identifierhttp://dx.doi.org/10.1142/S0217979209054132
dc.identifier.citationInternational Journal of Modern Physics B. Singapore: World Scientific Publ Co Pte Ltd, v. 23, n. 26, p. 5179-5189, 2009.
dc.identifier.doi10.1142/S0217979209054132
dc.identifier.issn0217-9792
dc.identifier.urihttp://hdl.handle.net/11449/10076
dc.identifier.wosWOS:000271863700009
dc.language.isoeng
dc.publisherWorld Scientific Publ Co Pte Ltd
dc.relation.ispartofInternational Journal of Modern Physics B
dc.relation.ispartofjcr0.769
dc.relation.ispartofsjr0,249
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectImpedanceen
dc.subjectNyquist's plotsen
dc.subjectac conductivityen
dc.subjectdc conductivityen
dc.titleIMPEDANCE CHARACTERISTICS of La3/2Bi3/2Fe5O12 CERAMICSen
dc.typeArtigo
dcterms.licensehttp://www.worldscientific.com/page/authors/author-rights
dcterms.rightsHolderWorld Scientific Publ Co Pte Ltd
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