Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites

Autores
Torre, Luis Maria; Aurelio, Gabriela; Granado, E.; Sanchez, Rodolfo Daniel
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work we report a study of the thermal stability and the evolution of the crystal structure of Ni-substituted YBaCo4-xNixO7 cobaltites, for x=0, 0.10 and 0.20. Synchrotron X-ray powder diffraction and thermodiffraction experiments show that the structural transition P31c→Pbn21, which occurs around room temperature for the parent compound, is shifted up to 40 by the partial substitution Ni-for-Co. Moreover, the transition is shown to be of first order with a volume collapse of ≈0.05% and an abrupt contraction of the cell along the c-direction. The monoclinic distortion below 100 K reported for the parent compound is also observed in the Ni-substituted samples, suggesting that they also get to order antiferromagnetically below that temperature. Magnetization measurements allowed us to detect a small amount of a ferromagnetic impurity in the sample with x=0.20, indicating that the solubility limit of Ni lies below that value. The magnetic susceptibility in the paramagnetic region, as well as the cell parameters in each crystallographic phase, is not significantly modified by these amounts of Ni substitution, in contrast to the marked enhancement of the P31c phase stability upon substitution.
Fil: Torre, Luis Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Aurelio, Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Granado, E.. Universidade Estadual de Campinas; Brasil
Fil: Sanchez, Rodolfo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Materia
Cobaltites
Magnetic Frustration
X-Ray Powder Diffraction
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:11336/53629
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltitesTorre, Luis MariaAurelio, GabrielaGranado, E.Sanchez, Rodolfo DanielCobaltitesMagnetic FrustrationX-Ray Powder Diffractionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this work we report a study of the thermal stability and the evolution of the crystal structure of Ni-substituted YBaCo4-xNixO7 cobaltites, for x=0, 0.10 and 0.20. Synchrotron X-ray powder diffraction and thermodiffraction experiments show that the structural transition P31c→Pbn21, which occurs around room temperature for the parent compound, is shifted up to 40 by the partial substitution Ni-for-Co. Moreover, the transition is shown to be of first order with a volume collapse of ≈0.05% and an abrupt contraction of the cell along the c-direction. The monoclinic distortion below 100 K reported for the parent compound is also observed in the Ni-substituted samples, suggesting that they also get to order antiferromagnetically below that temperature. Magnetization measurements allowed us to detect a small amount of a ferromagnetic impurity in the sample with x=0.20, indicating that the solubility limit of Ni lies below that value. The magnetic susceptibility in the paramagnetic region, as well as the cell parameters in each crystallographic phase, is not significantly modified by these amounts of Ni substitution, in contrast to the marked enhancement of the P31c phase stability upon substitution.Fil: Torre, Luis Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Aurelio, Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Granado, E.. Universidade Estadual de Campinas; BrasilFil: Sanchez, Rodolfo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaAcademic Press Inc Elsevier Science2015-07-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/53629Torre, Luis Maria; Aurelio, Gabriela; Granado, E.; Sanchez, Rodolfo Daniel; Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites; Academic Press Inc Elsevier Science; Journal of Solid State Chemistry; 230; 20-7-2015; 34-410022-4596CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jssc.2015.06.030info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022459615300372info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:28Zoai:ri.conicet.gov.ar:11336/53629instacron: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:34982025-09-03 09:56:28.345CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites
title Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites
spellingShingle Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites
Torre, Luis Maria
Cobaltites
Magnetic Frustration
X-Ray Powder Diffraction
title_short Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites
title_full Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites
title_fullStr Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites
title_full_unstemmed Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites
title_sort Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites
dc.creator.none.fl_str_mv Torre, Luis Maria
Aurelio, Gabriela
Granado, E.
Sanchez, Rodolfo Daniel
author Torre, Luis Maria
author_facet Torre, Luis Maria
Aurelio, Gabriela
Granado, E.
Sanchez, Rodolfo Daniel
author_role author
author2 Aurelio, Gabriela
Granado, E.
Sanchez, Rodolfo Daniel
author2_role author
author
author
dc.subject.none.fl_str_mv Cobaltites
Magnetic Frustration
X-Ray Powder Diffraction
topic Cobaltites
Magnetic Frustration
X-Ray Powder Diffraction
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work we report a study of the thermal stability and the evolution of the crystal structure of Ni-substituted YBaCo4-xNixO7 cobaltites, for x=0, 0.10 and 0.20. Synchrotron X-ray powder diffraction and thermodiffraction experiments show that the structural transition P31c→Pbn21, which occurs around room temperature for the parent compound, is shifted up to 40 by the partial substitution Ni-for-Co. Moreover, the transition is shown to be of first order with a volume collapse of ≈0.05% and an abrupt contraction of the cell along the c-direction. The monoclinic distortion below 100 K reported for the parent compound is also observed in the Ni-substituted samples, suggesting that they also get to order antiferromagnetically below that temperature. Magnetization measurements allowed us to detect a small amount of a ferromagnetic impurity in the sample with x=0.20, indicating that the solubility limit of Ni lies below that value. The magnetic susceptibility in the paramagnetic region, as well as the cell parameters in each crystallographic phase, is not significantly modified by these amounts of Ni substitution, in contrast to the marked enhancement of the P31c phase stability upon substitution.
Fil: Torre, Luis Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Aurelio, Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Granado, E.. Universidade Estadual de Campinas; Brasil
Fil: Sanchez, Rodolfo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
description In this work we report a study of the thermal stability and the evolution of the crystal structure of Ni-substituted YBaCo4-xNixO7 cobaltites, for x=0, 0.10 and 0.20. Synchrotron X-ray powder diffraction and thermodiffraction experiments show that the structural transition P31c→Pbn21, which occurs around room temperature for the parent compound, is shifted up to 40 by the partial substitution Ni-for-Co. Moreover, the transition is shown to be of first order with a volume collapse of ≈0.05% and an abrupt contraction of the cell along the c-direction. The monoclinic distortion below 100 K reported for the parent compound is also observed in the Ni-substituted samples, suggesting that they also get to order antiferromagnetically below that temperature. Magnetization measurements allowed us to detect a small amount of a ferromagnetic impurity in the sample with x=0.20, indicating that the solubility limit of Ni lies below that value. The magnetic susceptibility in the paramagnetic region, as well as the cell parameters in each crystallographic phase, is not significantly modified by these amounts of Ni substitution, in contrast to the marked enhancement of the P31c phase stability upon substitution.
publishDate 2015
dc.date.none.fl_str_mv 2015-07-20
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/11336/53629
Torre, Luis Maria; Aurelio, Gabriela; Granado, E.; Sanchez, Rodolfo Daniel; Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites; Academic Press Inc Elsevier Science; Journal of Solid State Chemistry; 230; 20-7-2015; 34-41
0022-4596
CONICET Digital
CONICET
url http://hdl.handle.net/11336/53629
identifier_str_mv Torre, Luis Maria; Aurelio, Gabriela; Granado, E.; Sanchez, Rodolfo Daniel; Structural study of Ni-substituted YBaCo4-xNixO7 frustrated cobaltites; Academic Press Inc Elsevier Science; Journal of Solid State Chemistry; 230; 20-7-2015; 34-41
0022-4596
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jssc.2015.06.030
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022459615300372
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
dc.publisher.none.fl_str_mv Academic Press Inc Elsevier Science
publisher.none.fl_str_mv Academic Press Inc 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 13.13397

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