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dc.creatorVijatović Petrović, Mirjana
dc.creatorBobić, Jelena
dc.creatorRamoska, T
dc.creatorBanys, J
dc.creatorStojanović, Biljana D
dc.date.accessioned2022-04-05T14:29:31Z
dc.date.available2022-04-05T14:29:31Z
dc.date.issued2011
dc.identifier.issn1044-5803
dc.identifier.urihttp://rimsi.imsi.bg.ac.rs/handle/123456789/465
dc.description.abstractPure and lanthanum doped barium titanate (BT) ceramics were prepared by sintering pellets at 1300 degrees C for 8 h, obtained from nanopowders synthesized by the polymeric precursor method. XRD results showed formation of a tetragonal structure. The presence of dopants changed the tetragonal structure to pseudo-cubic. The polygonal grain size was reduced up to 300 nm with addition of lanthanum as a donor dopant. Determined dielectric properties revealed that lanthanum modified BT ceramics possessed a diffused ferroelectric character in comparison with pure BT that is a classical ferroelectric material. In doped BT phase transition temperatures were shifted to lower temperatures and dielectric constant values were much higher than in pure BT. A modified Currie Weiss law was used to explore the connection between the doping level and degree of diffuseness of phase transitions. Impedance spectroscopy measurements were carried out at different temperatures in order to investigate electrical resistivity of materials and appearance of a PTCR effect.en
dc.publisherElsevier Science Inc, New York
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45021/RS//
dc.relationLithuanian Research Funding Institution-Faculty of Physics, Vilnius and COST [539]
dc.rightsrestrictedAccess
dc.sourceMaterials Characterization
dc.subjectSoft chemical synthesisen
dc.subjectMicrostructureen
dc.subjectElectrical propertiesen
dc.subjectDopanten
dc.subjectBarium titanateen
dc.titleElectrical properties of lanthanum doped barium titanate ceramicsen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage1006
dc.citation.issue10
dc.citation.other62(10): 1000-1006
dc.citation.rankaM21
dc.citation.spage1000
dc.citation.volume62
dc.identifier.doi10.1016/j.matchar.2011.07.013
dc.identifier.scopus2-s2.0-80051593228
dc.identifier.wos000295439900012
dc.type.versionpublishedVersion


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