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dc.contributor.authorRout, S K-
dc.contributor.authorBera, J-
dc.identifier.citationFerroelectrics, Vol 323, P 79-84en
dc.descriptionCopyright for this article belongs to Taylor & Francis DOI: 10.1080/00150190500308777en
dc.description.abstractImpedance spectroscopy has been used to characterize grain and grain-boundary resistivities of Ni-doped SrTiO3 ceramics. The role of grain boundary was changed with Ni-doping concentration. The phenomenon was also interpreted by accounting for microstructural differences. The corresponding relaxation times were also used to confirm the interpretation of complex impedance spectra. Overlapping of Grain boundary and electrode relaxation processes can be separated above about 400°C. Admittance spectra may be suitable to extract grain boundary impedances at relatively low temperatures. The values of grain and grain-boundary activation energy obtained by this method were relatively close to those reported earlieren
dc.format.extent794175 bytes-
dc.publisherTaylor & Francisen
dc.subjectimpedance spectroscopyen
dc.subjectgrain boundaryen
dc.titleGrain and grain-boundary study of acceptor doped SrTiO3 ceramics using impedance spectroscopyen
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