Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites

Autores
Aurelio, Gabriela; Curiale, Carlos Javier; Sanchez, Rodolfo Daniel
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have synthesized the layered cobaltites YBaCo2 O5 + δ with different oxygen contents (δ1 and δ2), and characterized its structural and physical properties using various experimental techniques within the 80-500 K temperature range. Two superstructures have been identified due to the ordering of oxygen vacancies. One of them (corresponding to δ ≃ 0.50) shows a metal-insulator transition at room temperature, while both exhibit a sequence of magnetic transitions AFM-FM-PM as the temperature is increased. We have determined the second-order nature of the FM-PM magnetic transition using the Banerjee criterion. We also show that there exist intrinsic differences between both samples in terms of the charge carriers involved, which manifest in the transport properties.
Fil: Aurelio, Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
Fil: Curiale, Carlos Javier. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
Fil: Sanchez, Rodolfo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
Materia
Cobaltites
Magnetic Oxides
Magnetic Transition
Metal-Insulator Transition
Oxygen Non-Stoichiometry
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:11336/68542
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/68542
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltitesAurelio, GabrielaCuriale, Carlos JavierSanchez, Rodolfo DanielCobaltitesMagnetic OxidesMagnetic TransitionMetal-Insulator TransitionOxygen Non-Stoichiometryhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We have synthesized the layered cobaltites YBaCo2 O5 + δ with different oxygen contents (δ1 and δ2), and characterized its structural and physical properties using various experimental techniques within the 80-500 K temperature range. Two superstructures have been identified due to the ordering of oxygen vacancies. One of them (corresponding to δ ≃ 0.50) shows a metal-insulator transition at room temperature, while both exhibit a sequence of magnetic transitions AFM-FM-PM as the temperature is increased. We have determined the second-order nature of the FM-PM magnetic transition using the Banerjee criterion. We also show that there exist intrinsic differences between both samples in terms of the charge carriers involved, which manifest in the transport properties.Fil: Aurelio, Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); ArgentinaFil: Curiale, Carlos Javier. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); ArgentinaFil: Sanchez, Rodolfo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); ArgentinaElsevier Science2006-10info: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/11336/68542Aurelio, Gabriela; Curiale, Carlos Javier; Sanchez, Rodolfo Daniel; Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites; Elsevier Science; Physica B: Condensed Matter; 384; 1-2; 10-2006; 106-1090921-4526CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0921452606010362info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physb.2006.05.164info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:26:56Zoai:ri.conicet.gov.ar:11336/68542instacron: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 10:26:56.738CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites
title Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites
spellingShingle Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites
Aurelio, Gabriela
Cobaltites
Magnetic Oxides
Magnetic Transition
Metal-Insulator Transition
Oxygen Non-Stoichiometry
title_short Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites
title_full Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites
title_fullStr Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites
title_full_unstemmed Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites
title_sort Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites
dc.creator.none.fl_str_mv Aurelio, Gabriela
Curiale, Carlos Javier
Sanchez, Rodolfo Daniel
author Aurelio, Gabriela
author_facet Aurelio, Gabriela
Curiale, Carlos Javier
Sanchez, Rodolfo Daniel
author_role author
author2 Curiale, Carlos Javier
Sanchez, Rodolfo Daniel
author2_role author
author
dc.subject.none.fl_str_mv Cobaltites
Magnetic Oxides
Magnetic Transition
Metal-Insulator Transition
Oxygen Non-Stoichiometry
topic Cobaltites
Magnetic Oxides
Magnetic Transition
Metal-Insulator Transition
Oxygen Non-Stoichiometry
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We have synthesized the layered cobaltites YBaCo2 O5 + δ with different oxygen contents (δ1 and δ2), and characterized its structural and physical properties using various experimental techniques within the 80-500 K temperature range. Two superstructures have been identified due to the ordering of oxygen vacancies. One of them (corresponding to δ ≃ 0.50) shows a metal-insulator transition at room temperature, while both exhibit a sequence of magnetic transitions AFM-FM-PM as the temperature is increased. We have determined the second-order nature of the FM-PM magnetic transition using the Banerjee criterion. We also show that there exist intrinsic differences between both samples in terms of the charge carriers involved, which manifest in the transport properties.
Fil: Aurelio, Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
Fil: Curiale, Carlos Javier. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
Fil: Sanchez, Rodolfo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
description We have synthesized the layered cobaltites YBaCo2 O5 + δ with different oxygen contents (δ1 and δ2), and characterized its structural and physical properties using various experimental techniques within the 80-500 K temperature range. Two superstructures have been identified due to the ordering of oxygen vacancies. One of them (corresponding to δ ≃ 0.50) shows a metal-insulator transition at room temperature, while both exhibit a sequence of magnetic transitions AFM-FM-PM as the temperature is increased. We have determined the second-order nature of the FM-PM magnetic transition using the Banerjee criterion. We also show that there exist intrinsic differences between both samples in terms of the charge carriers involved, which manifest in the transport properties.
publishDate 2006
dc.date.none.fl_str_mv 2006-10
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/11336/68542
Aurelio, Gabriela; Curiale, Carlos Javier; Sanchez, Rodolfo Daniel; Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites; Elsevier Science; Physica B: Condensed Matter; 384; 1-2; 10-2006; 106-109
0921-4526
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68542
identifier_str_mv Aurelio, Gabriela; Curiale, Carlos Javier; Sanchez, Rodolfo Daniel; Effects of oxygen non-stoichiometry on the physical properties of the YBaCo2 O5 + δ layered cobaltites; Elsevier Science; Physica B: Condensed Matter; 384; 1-2; 10-2006; 106-109
0921-4526
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0921452606010362
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physb.2006.05.164
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
_version_ 1844614270867734528
score 13.070432

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