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Raman studies on ferroelectric properties of KTa0.6Nb0.4O3 (KTN)

dc.contributor.authorHAMADI, Khemakhem
dc.contributor.authorM., Gargouri
dc.contributor.authorT., Mhiri
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorRAVEZ, Jean
dc.contributor.authorDAOUDI, Abdelhamid
dc.date.issued1997
dc.identifier.issn0971-9237
dc.description.abstractEnThe ferroelectric transition in KTa0.6Nb0.4O3 (KTN) was investigated by light scattering measurements up to 1300 cm-1 as a function of temperature. A careful analysis of the temperature dependence of the optical phonon lines before and after the cubic - tetragonal transition shows. anomalies at the ferroelectric - paraelectric transition. This transition is proceeded in the cubic phase by the formation of precursor clusters as in very dilute KTN crystals. The precursor clusters process can be induced by the relaxation of correlated off-centred TaS+ or NbS+ ions.
dc.language.isoen
dc.publisherSpectral-Force Publications
dc.title.enRaman studies on ferroelectric properties of KTa0.6Nb0.4O3 (KTN)
dc.typeArticle de revue
dc.subject.halChimie/Matériaux
bordeaux.journalAsian Journal of Spectroscopy
bordeaux.page225-230
bordeaux.volume1
bordeaux.peerReviewedoui
hal.identifierhal-04236235
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04236235v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Asian%20Journal%20of%20Spectroscopy&rft.date=1997&rft.volume=1&rft.spage=225-230&rft.epage=225-230&rft.eissn=0971-9237&rft.issn=0971-9237&rft.au=HAMADI,%20Khemakhem&M.,%20Gargouri&T.,%20Mhiri&RAVEZ,%20Jean&DAOUDI,%20Abdelhamid&rft.genre=article


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