Light scattering by lithium tantalate at room temperature

dc.contributor.author	Penna, Antonio Fernando S.	pt_BR
dc.contributor.author	Chaves, Alaor Silverio	pt_BR
dc.contributor.author	Andrade, Pedro da Rocha	pt_BR
dc.contributor.author	Porto, Sergio P.S.	pt_BR
dc.date.accessioned	2014-10-04T02:13:23Z	pt_BR
dc.date.issued	1976	pt_BR
dc.identifier.issn	0556-2805	pt_BR
dc.identifier.uri	http://hdl.handle.net/10183/104166	pt_BR
dc.description.abstract	The room-temperature Raman spectra of LiTa03 for all symmetry phonons are investigated. We make a new assignment of the phonons, which agrees with the selection rules of a C3 symmetry instead of C3V, contrary to Kaminow and Johnston's previous work. The oblique phonon dispersions are obtained and tum out to be consistent with our phonon assignments. We obtain also the polariton dispersion curve and, from it, the lowftequency dielectric constant.	en
dc.format.mimetype	application/pdf	pt_BR
dc.language.iso	eng	pt_BR
dc.relation.ispartof	Physical review. B, Solid state. New York. Vol. 13, no. 11 (June 1976), p. 4907-4917	pt_BR
dc.rights	Open Access	en
dc.subject	Física da matéria condensada	pt_BR
dc.subject	Espectroscopia Raman	pt_BR
dc.title	Light scattering by lithium tantalate at room temperature	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.identifier.nrb	000146416	pt_BR
dc.type.origin	Estrangeiro	pt_BR

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