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Effect of doping by Bi and Ca on ferroelectric properties and relaxor character in the (Ba1−xCax)1−3y/2BiyTiO3 solid solution

hal.structure.identifierLaboratoire des Matériaux Ferroélectriques [LMF]
dc.contributor.authorZAGHOUENE, H.
hal.structure.identifierLaboratoire des Matériaux Ferroélectriques [LMF]
dc.contributor.authorBAHRI, F.
hal.structure.identifierLaboratoire de l'État Solide
dc.contributor.authorBOUJELBENE, M.
hal.structure.identifierLaboratoire des Matériaux Ferroélectriques [LMF]
dc.contributor.authorKHEMAKHEM, Hamadi
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorSIMON, Annie
dc.date.issued2012
dc.identifier.issn0022-3697
dc.description.abstractEnThe temperature dependence of the real and imaginary parts of dielectric permittivity for (Ba1−xCax)1−3y/2BiyTiO3solidsolution prepared using the solid-state reaction technique, suggests that the relaxorcharacter in this solidsolution depends strongly on the Bi than on the Cadoping percent. X-ray diffraction analysis show that Bidoping can be fully incorporated into the perovskite lattice of (Ba1−xCax)TiO3. Doping with Bi causes remarkable shift of the maximum of dielectric permittivity (Tm) at low temperatures and the evolution of ε′r exhibiting strong frequency dispersion. For some compositions, we have observed a typical behavior of a well-known relaxors. On the other hand, we pointed out that the relaxorcharacter is linked principally to the nature of the substituting element and not to the heterogeneity in general. So the Ca element does not have the same effect as the Bi one.
dc.language.isoen
dc.publisherElsevier
dc.subject.enCeramics
dc.subject.enOxides
dc.subject.enChemical synthesis
dc.subject.enX-ray diffraction
dc.subject.enDielectric properties
dc.title.enEffect of doping by Bi and Ca on ferroelectric properties and relaxor character in the (Ba1−xCax)1−3y/2BiyTiO3 solid solution
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jpcs.2012.05.017
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Physics and Chemistry of Solids
bordeaux.page1218-1222
bordeaux.volume73
bordeaux.issue10
bordeaux.peerReviewedoui
hal.identifierhal-00718676
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00718676v1
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