Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/1370
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dc.contributor.authorStojadinović, Bojanen_US
dc.contributor.authorDohčević-Mitrović, Zoranaen_US
dc.contributor.authorStepanenko, Dimitrijeen_US
dc.contributor.authorRosić, Milenaen_US
dc.contributor.authorPetronijević, Ivanen_US
dc.contributor.authorTasić, Nikolaen_US
dc.contributor.authorIlić, Nikolaen_US
dc.contributor.authorMatović, Brankoen_US
dc.contributor.authorStojanović, Biljanaen_US
dc.date.accessioned2023-10-12T12:28:02Z-
dc.date.available2023-10-12T12:28:02Z-
dc.date.issued2017-12-15-
dc.identifier.issn02728842-
dc.identifier.urihttps://physrep.ff.bg.ac.rs/handle/123456789/1370-
dc.description.abstractWe have studied Ho-doped BiFeO3 nanopowders (Bi1−xHoxFeO3, x = 0–0.15), prepared via sol-gel method, in order to analyse the effect of substitution-driven structural transition on dielectric and ferroelectric properties of bismuth ferrite. X-ray diffraction and Raman study demonstrated that an increased Ho concentration (x ≥ 0.1) has induced gradual phase transition from rhombohedral to orthorhombic phase. The frequency dependent permittivity of Bi1−xHoxFeO3 nanopowders was analysed within a model which incorporates Debye-like dielectric response and dc and ac conductivity contributions based on universal dielectric response. It was shown that influence of leakage current and grain boundary/interface effects on dielectric and ferroelectric properties was substantially reduced in biphasic Bi1−xHoxFeO3 (x > 0.1) samples. The electrical performance of Bi0.85Ho0.15FeO3 sample, for which orthorhombic phase prevailed, was significantly improved and Bi0.85Ho0.15FeO3 has sustained strong applied electric fields (up to 100 kV/cm) without breakdown. Under strong external fields, the polarization exhibited strong frequency dependence. The low-frequency remnant polarization and coercive field of Bi0.85Ho0.15FeO3 were significantly enhanced. It was proposed that defect dipolar polarization substantially contributed to the intrinsic polarization of Bi0.85Ho0.15FeO3 under strong electric fields at low frequencies.en_US
dc.relation.ispartofCeramics Internationalen_US
dc.subjectDielectric propertiesen_US
dc.subjectFerroelectric propertiesen_US
dc.subjectPerovskitesen_US
dc.subjectSol-gel processesen_US
dc.subjectX-ray methodsen_US
dc.titleDielectric and ferroelectric properties of Ho-doped BiFeO<inf>3</inf> nanopowders across the structural phase transitionen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.ceramint.2017.09.038-
dc.identifier.scopus2-s2.0-85028974358-
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/85028974358-
dc.relation.issue18en_US
dc.relation.volume43en_US
dc.relation.firstpage16531en_US
dc.relation.lastpage16538en_US
item.openairetypeArticle-
item.cerifentitytypePublications-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextnone-
crisitem.author.orcid0000-0003-1719-5468-
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