Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite

Autores
El Amrania, M.; Zaghrioui, M.; Ta Phuoc, V.; Gervais, F.; Massa, Nestor Emilio
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Raman scattering and infrared reflectivity performed on polycrystalline SmCrO3 support stronginfluence of the antiferromagnetic order on phononmodes. Both measurements show softening of some modes below TN. Such a behavior is explained by spin–phonon coupling in this compound. Furthermore, temperature dependence of the infrared spectra has demonstrated important changes compared to the Raman spectra, suggesting strong structural modifications due to the cation displacements rather to those of the oxygenions. Our results reveal that polar distortions originating in local symmetry breaking, i.e. local non-centrosymmetry, resulting in Cr off-centring.
Fil: El Amrania, M.. Université F. Rabelais; Francia
Fil: Zaghrioui, M.. Université F. Rabelais; Francia
Fil: Ta Phuoc, V.. Université F. Rabelais; Francia
Fil: Gervais, F.. Université F. Rabelais; Francia
Fil: Massa, Nestor Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; Argentina
Materia
Multiferroic
Orthochromite
Raman Scattering
Infraredreflectivity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/24975
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/24975
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromiteEl Amrania, M.Zaghrioui, M.Ta Phuoc, V.Gervais, F.Massa, Nestor EmilioMultiferroicOrthochromiteRaman ScatteringInfraredreflectivityhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Raman scattering and infrared reflectivity performed on polycrystalline SmCrO3 support stronginfluence of the antiferromagnetic order on phononmodes. Both measurements show softening of some modes below TN. Such a behavior is explained by spin–phonon coupling in this compound. Furthermore, temperature dependence of the infrared spectra has demonstrated important changes compared to the Raman spectra, suggesting strong structural modifications due to the cation displacements rather to those of the oxygenions. Our results reveal that polar distortions originating in local symmetry breaking, i.e. local non-centrosymmetry, resulting in Cr off-centring.Fil: El Amrania, M.. Université F. Rabelais; FranciaFil: Zaghrioui, M.. Université F. Rabelais; FranciaFil: Ta Phuoc, V.. Université F. Rabelais; FranciaFil: Gervais, F.. Université F. Rabelais; FranciaFil: Massa, Nestor Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; ArgentinaElsevier Science2014-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24975El Amrania, M.; Zaghrioui, M.; Ta Phuoc, V.; Gervais, F.; Massa, Nestor Emilio; Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite; Elsevier Science; Journal of Magnetism and Magnetic Materials; 361; 4-2014; 1-60304-8853CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304885314001693info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmmm.2014.02.057info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:41:48Zoai:ri.conicet.gov.ar:11336/24975instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:41:49.205CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite
title Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite
spellingShingle Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite
El Amrania, M.
Multiferroic
Orthochromite
Raman Scattering
Infraredreflectivity
title_short Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite
title_full Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite
title_fullStr Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite
title_full_unstemmed Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite
title_sort Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite
dc.creator.none.fl_str_mv El Amrania, M.
Zaghrioui, M.
Ta Phuoc, V.
Gervais, F.
Massa, Nestor Emilio
author El Amrania, M.
author_facet El Amrania, M.
Zaghrioui, M.
Ta Phuoc, V.
Gervais, F.
Massa, Nestor Emilio
author_role author
author2 Zaghrioui, M.
Ta Phuoc, V.
Gervais, F.
Massa, Nestor Emilio
author2_role author
author
author
author
dc.subject.none.fl_str_mv Multiferroic
Orthochromite
Raman Scattering
Infraredreflectivity
topic Multiferroic
Orthochromite
Raman Scattering
Infraredreflectivity
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Raman scattering and infrared reflectivity performed on polycrystalline SmCrO3 support stronginfluence of the antiferromagnetic order on phononmodes. Both measurements show softening of some modes below TN. Such a behavior is explained by spin–phonon coupling in this compound. Furthermore, temperature dependence of the infrared spectra has demonstrated important changes compared to the Raman spectra, suggesting strong structural modifications due to the cation displacements rather to those of the oxygenions. Our results reveal that polar distortions originating in local symmetry breaking, i.e. local non-centrosymmetry, resulting in Cr off-centring.
Fil: El Amrania, M.. Université F. Rabelais; Francia
Fil: Zaghrioui, M.. Université F. Rabelais; Francia
Fil: Ta Phuoc, V.. Université F. Rabelais; Francia
Fil: Gervais, F.. Université F. Rabelais; Francia
Fil: Massa, Nestor Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; Argentina
description Raman scattering and infrared reflectivity performed on polycrystalline SmCrO3 support stronginfluence of the antiferromagnetic order on phononmodes. Both measurements show softening of some modes below TN. Such a behavior is explained by spin–phonon coupling in this compound. Furthermore, temperature dependence of the infrared spectra has demonstrated important changes compared to the Raman spectra, suggesting strong structural modifications due to the cation displacements rather to those of the oxygenions. Our results reveal that polar distortions originating in local symmetry breaking, i.e. local non-centrosymmetry, resulting in Cr off-centring.
publishDate 2014
dc.date.none.fl_str_mv 2014-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/24975
El Amrania, M.; Zaghrioui, M.; Ta Phuoc, V.; Gervais, F.; Massa, Nestor Emilio; Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite; Elsevier Science; Journal of Magnetism and Magnetic Materials; 361; 4-2014; 1-6
0304-8853
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24975
identifier_str_mv El Amrania, M.; Zaghrioui, M.; Ta Phuoc, V.; Gervais, F.; Massa, Nestor Emilio; Local symmetry breaking and spin–phonon coupling in SmCrO3 orthochromite; Elsevier Science; Journal of Magnetism and Magnetic Materials; 361; 4-2014; 1-6
0304-8853
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0304885314001693
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmmm.2014.02.057
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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