Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1)

Autores
Rivadulla, F.; López Quintela, M. A.; Hueso, Luis E.; Sande, P.; Rivas, J.; Sanchez, Rodolfo Daniel
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this paper we show the effect of Mn site substitution (≤10%) by Co and Cr on the magnetotransport properties of ceramic samples of La2/3Ca1/3MnO3. Resistivity, magnetization, and magnetoresistance were systematically investigated as a function of doping. An increase in resistivity and a diminution of metal-insulator transition and Curie temperatures was observed as a consequence of both Co and Cr doping. The evolution of the number of neighbors ferromagnetically coupled to Mn was studied in each sample, and the results suggest some degree of ferromagnetic coupling between Cr3+ and Mn ions. Implications of both ferromagnetic Cr 3+-O-Mn3+ superexchange and double exchange interactions are discussed. We also found the existence of an optimum doping level that enhances colossal magnetoresistance. This has been explained considering electron localization due to magnetic disorder induced by doping in the Mn site.
Fil: Rivadulla, F.. Universidad de Santiago de Compostela; España
Fil: López Quintela, M. A.. Universidad de Santiago de Compostela; España
Fil: Hueso, Luis E.. Universidad de Santiago de Compostela; España
Fil: Sande, P.. Universidad de Santiago de Compostela; España
Fil: Rivas, J.. Universidad de Santiago de Compostela; España
Fil: Sanchez, Rodolfo Daniel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Manganites
Colossal Magnetoresistance
Electrical Properties
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:11336/68582
Acceder
id CONICETDig_8ff8b7c5894037a5b89799439031f3b5
oai_identifier_str oai:ri.conicet.gov.ar:11336/68582
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1)Rivadulla, F.López Quintela, M. A.Hueso, Luis E.Sande, P.Rivas, J.Sanchez, Rodolfo DanielManganitesColossal MagnetoresistanceElectrical Propertieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this paper we show the effect of Mn site substitution (≤10%) by Co and Cr on the magnetotransport properties of ceramic samples of La2/3Ca1/3MnO3. Resistivity, magnetization, and magnetoresistance were systematically investigated as a function of doping. An increase in resistivity and a diminution of metal-insulator transition and Curie temperatures was observed as a consequence of both Co and Cr doping. The evolution of the number of neighbors ferromagnetically coupled to Mn was studied in each sample, and the results suggest some degree of ferromagnetic coupling between Cr3+ and Mn ions. Implications of both ferromagnetic Cr 3+-O-Mn3+ superexchange and double exchange interactions are discussed. We also found the existence of an optimum doping level that enhances colossal magnetoresistance. This has been explained considering electron localization due to magnetic disorder induced by doping in the Mn site.Fil: Rivadulla, F.. Universidad de Santiago de Compostela; EspañaFil: López Quintela, M. A.. Universidad de Santiago de Compostela; EspañaFil: Hueso, Luis E.. Universidad de Santiago de Compostela; EspañaFil: Sande, P.. Universidad de Santiago de Compostela; EspañaFil: Rivas, J.. Universidad de Santiago de Compostela; EspañaFil: Sanchez, Rodolfo Daniel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaAmerican Physical Society2000-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68582Rivadulla, F.; López Quintela, M. A.; Hueso, Luis E.; Sande, P.; Rivas, J.; et al.; Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1); American Physical Society; Physical Review B; 62; 9; 9-2000; 5678-56840163-1829CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.62.5678info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.62.5678info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:48:22Zoai:ri.conicet.gov.ar:11336/68582instacron: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:34982025-10-15 14:48:22.636CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1)
title Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1)
spellingShingle Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1)
Rivadulla, F.
Manganites
Colossal Magnetoresistance
Electrical Properties
title_short Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1)
title_full Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1)
title_fullStr Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1)
title_full_unstemmed Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1)
title_sort Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1)
dc.creator.none.fl_str_mv Rivadulla, F.
López Quintela, M. A.
Hueso, Luis E.
Sande, P.
Rivas, J.
Sanchez, Rodolfo Daniel
author Rivadulla, F.
author_facet Rivadulla, F.
López Quintela, M. A.
Hueso, Luis E.
Sande, P.
Rivas, J.
Sanchez, Rodolfo Daniel
author_role author
author2 López Quintela, M. A.
Hueso, Luis E.
Sande, P.
Rivas, J.
Sanchez, Rodolfo Daniel
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Manganites
Colossal Magnetoresistance
Electrical Properties
topic Manganites
Colossal Magnetoresistance
Electrical Properties
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 paper we show the effect of Mn site substitution (≤10%) by Co and Cr on the magnetotransport properties of ceramic samples of La2/3Ca1/3MnO3. Resistivity, magnetization, and magnetoresistance were systematically investigated as a function of doping. An increase in resistivity and a diminution of metal-insulator transition and Curie temperatures was observed as a consequence of both Co and Cr doping. The evolution of the number of neighbors ferromagnetically coupled to Mn was studied in each sample, and the results suggest some degree of ferromagnetic coupling between Cr3+ and Mn ions. Implications of both ferromagnetic Cr 3+-O-Mn3+ superexchange and double exchange interactions are discussed. We also found the existence of an optimum doping level that enhances colossal magnetoresistance. This has been explained considering electron localization due to magnetic disorder induced by doping in the Mn site.
Fil: Rivadulla, F.. Universidad de Santiago de Compostela; España
Fil: López Quintela, M. A.. Universidad de Santiago de Compostela; España
Fil: Hueso, Luis E.. Universidad de Santiago de Compostela; España
Fil: Sande, P.. Universidad de Santiago de Compostela; España
Fil: Rivas, J.. Universidad de Santiago de Compostela; España
Fil: Sanchez, Rodolfo Daniel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description In this paper we show the effect of Mn site substitution (≤10%) by Co and Cr on the magnetotransport properties of ceramic samples of La2/3Ca1/3MnO3. Resistivity, magnetization, and magnetoresistance were systematically investigated as a function of doping. An increase in resistivity and a diminution of metal-insulator transition and Curie temperatures was observed as a consequence of both Co and Cr doping. The evolution of the number of neighbors ferromagnetically coupled to Mn was studied in each sample, and the results suggest some degree of ferromagnetic coupling between Cr3+ and Mn ions. Implications of both ferromagnetic Cr 3+-O-Mn3+ superexchange and double exchange interactions are discussed. We also found the existence of an optimum doping level that enhances colossal magnetoresistance. This has been explained considering electron localization due to magnetic disorder induced by doping in the Mn site.
publishDate 2000
dc.date.none.fl_str_mv 2000-09
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/11336/68582
Rivadulla, F.; López Quintela, M. A.; Hueso, Luis E.; Sande, P.; Rivas, J.; et al.; Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1); American Physical Society; Physical Review B; 62; 9; 9-2000; 5678-5684
0163-1829
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68582
identifier_str_mv Rivadulla, F.; López Quintela, M. A.; Hueso, Luis E.; Sande, P.; Rivas, J.; et al.; Effect of Mn-site doping on the magnetotransport properties of the colossal magnetoresistance compound La2/3Ca1/3Mn1-xAxO3 (A=Co, Cr; x≤0.1); American Physical Society; Physical Review B; 62; 9; 9-2000; 5678-5684
0163-1829
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.62.5678
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.62.5678
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 American Physical Society
publisher.none.fl_str_mv American Physical Society
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_ 1846083003437023232
score 13.22299

Publicaciones similares