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http://hdl.handle.net/10773/20335
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DC Field | Value | Language |
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dc.contributor.author | Coondoo, Indrani | pt |
dc.contributor.author | Panwar, Neeraj | pt |
dc.contributor.author | Rafiq, Muhammad Asif | pt |
dc.contributor.author | Puli, Venkata S. | pt |
dc.contributor.author | Rafiq, Muhammad Nadeem | pt |
dc.contributor.author | Katiyar, Ram S. | pt |
dc.date.accessioned | 2017-12-07T19:43:34Z | - |
dc.date.issued | 2014 | pt |
dc.identifier.issn | 0272-8842 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/20335 | - |
dc.description.abstract | Polycrystalline BiFeO3 and Bi0.90R0.10)Fe0.95Sc0.05O3 [R=La, Nd] ceramics were synthesized by solid-state reaction method. XRD studies confirmed the formation of single-phase compositions. The particle sizes obtained from XRD data were 43, 31 and 30 nm for BFO, BLFSO and BNFSO, respectively. Dielectric studies revealed anomalies around 200 degrees C and near the Neel temperature. The latter is attributed to the phase transition as an influence of vanishing magnetic order on the electric order usually observed in magneto-electric ordered systems. Complex impedance spectroscopy (CIS) technique was utilized to investigate the intra- and inter-granular contributions to the impedance in the studied compositions as a function of temperature and frequency. CIS studies revealed that the electrical relaxation process was temperature dependent and non-Debye type. AC conductivity studies revealed that conductivity in samples was mainly due to the hopping of oxygen vacancy between the oxidation states (Fe3+/Fe2+) of iron. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. | pt |
dc.language.iso | eng | pt |
dc.publisher | ELSEVIER SCI LTD | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F81032%2F2011/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132936/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | BIFEO3 THIN-FILMS | pt |
dc.subject | FERROELECTRIC PROPERTIES | pt |
dc.subject | DOPED BIFEO3 | pt |
dc.subject | RARE-EARTH | pt |
dc.subject | RELAXATION | pt |
dc.subject | CRYSTAL | pt |
dc.subject | PURE | pt |
dc.title | Structural, dielectric and impedance spectroscopy studies in (Bi0.90R0.10)Fe0.95Sc0.05O3 [R = La, Nd] ceramics | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 9895 | pt |
degois.publication.issue | 7 | pt |
degois.publication.lastPage | 9902 | pt |
degois.publication.title | CERAMICS INTERNATIONAL | pt |
degois.publication.volume | 40 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1016/j.ceramint.2014.02.084 | pt |
dc.identifier.doi | 10.1016/j.ceramint.2014.02.084 | pt |
Appears in Collections: | CICECO - Artigos |
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File | Description | Size | Format | |
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Structural dielectric and impedance spectroscopy studies in (Bi 0.90R0.10)Fe0.95Sc0.05O3 [R=La Nd] ceramics_10.1016j.ceramint.2014.02.084.pdf | 725.24 kB | Adobe PDF |
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