Light scattering by lithium tantalate at room temperature

Detalhes bibliográficos
Autor(a) principal: Penna, Antonio Fernando S.
Data de Publicação: 1976
Outros Autores: Chaves, Alaor Silverio, Andrade, Pedro da Rocha, Porto, Sergio P.S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/104166
Resumo: 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.
id UFRGS-2_8e2e9d7533fcdd3b75ceddc72ded0b00
oai_identifier_str oai:www.lume.ufrgs.br:10183/104166
network_acronym_str UFRGS-2
network_name_str Repositório Institucional da UFRGS
repository_id_str
spelling Penna, Antonio Fernando S.Chaves, Alaor SilverioAndrade, Pedro da RochaPorto, Sergio P.S.2014-10-04T02:13:23Z19760556-2805http://hdl.handle.net/10183/104166000146416The 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.application/pdfengPhysical review. B, Solid state. New York. Vol. 13, no. 11 (June 1976), p. 4907-4917Física da matéria condensadaEspectroscopia RamanLight scattering by lithium tantalate at room temperatureEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT000146416.pdf.txt000146416.pdf.txtExtracted Texttext/plain31141http://www.lume.ufrgs.br/bitstream/10183/104166/2/000146416.pdf.txt6e9c0f3699a9455f06e2c9bc4f5bee22MD52ORIGINAL000146416.pdf000146416.pdfTexto completo (inglês)application/pdf1111600http://www.lume.ufrgs.br/bitstream/10183/104166/1/000146416.pdf448102cd80a9dec520d4405530b8b3f9MD51THUMBNAIL000146416.pdf.jpg000146416.pdf.jpgGenerated Thumbnailimage/jpeg1887http://www.lume.ufrgs.br/bitstream/10183/104166/3/000146416.pdf.jpg67b7e7f5d15d70ab6f2e8fddfa2e546dMD5310183/1041662022-04-20 04:47:10.939569oai:www.lume.ufrgs.br:10183/104166Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-04-20T07:47:10Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Light scattering by lithium tantalate at room temperature
title Light scattering by lithium tantalate at room temperature
spellingShingle Light scattering by lithium tantalate at room temperature
Penna, Antonio Fernando S.
Física da matéria condensada
Espectroscopia Raman
title_short Light scattering by lithium tantalate at room temperature
title_full Light scattering by lithium tantalate at room temperature
title_fullStr Light scattering by lithium tantalate at room temperature
title_full_unstemmed Light scattering by lithium tantalate at room temperature
title_sort Light scattering by lithium tantalate at room temperature
author Penna, Antonio Fernando S.
author_facet Penna, Antonio Fernando S.
Chaves, Alaor Silverio
Andrade, Pedro da Rocha
Porto, Sergio P.S.
author_role author
author2 Chaves, Alaor Silverio
Andrade, Pedro da Rocha
Porto, Sergio P.S.
author2_role author
author
author
dc.contributor.author.fl_str_mv Penna, Antonio Fernando S.
Chaves, Alaor Silverio
Andrade, Pedro da Rocha
Porto, Sergio P.S.
dc.subject.por.fl_str_mv Física da matéria condensada
Espectroscopia Raman
topic Física da matéria condensada
Espectroscopia Raman
description 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.
publishDate 1976
dc.date.issued.fl_str_mv 1976
dc.date.accessioned.fl_str_mv 2014-10-04T02:13:23Z
dc.type.driver.fl_str_mv Estrangeiro
info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/104166
dc.identifier.issn.pt_BR.fl_str_mv 0556-2805
dc.identifier.nrb.pt_BR.fl_str_mv 000146416
identifier_str_mv 0556-2805
000146416
url http://hdl.handle.net/10183/104166
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physical review. B, Solid state. New York. Vol. 13, no. 11 (June 1976), p. 4907-4917
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
bitstream.url.fl_str_mv http://www.lume.ufrgs.br/bitstream/10183/104166/2/000146416.pdf.txt
http://www.lume.ufrgs.br/bitstream/10183/104166/1/000146416.pdf
http://www.lume.ufrgs.br/bitstream/10183/104166/3/000146416.pdf.jpg
bitstream.checksum.fl_str_mv 6e9c0f3699a9455f06e2c9bc4f5bee22
448102cd80a9dec520d4405530b8b3f9
67b7e7f5d15d70ab6f2e8fddfa2e546d
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)
repository.mail.fl_str_mv
_version_ 1815447561462349824

Registros relacionados