Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30)

Autores
Mira, J.; Rivas, J.; Breijo, M. P.; Señarís Rodríguez, M. A.; Sanchez, Rodolfo Daniel
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A study of the reliability of the title compounds as a basis for magnetoresistive sensors is presented. For this purpose we have carried out long-term systematic studies of the evolution of the resistive and magnetic properties of samples synthesized by both ceramic and wet chemical routes, allowing them to age during several months. It is observed that, although the magnetic properties remain unaltered, their resistivity does change appreciably. With time, samples that are initially metallic over all the measured temperature range (T < 300 K), change to semiconductor-like behaviour at low temperatures and above their ferromagnetic to paramagnetic phase transition temperature, giving rise to a 'reentrant semiconducting behaviour' with associated high electrical noise, relaxation effects of the resistivity and even diodic behaviour.
Fil: Mira, J.. Universidad de Santiago de Compostela. Facultad de Física; España
Fil: Rivas, J.. Universidad de Santiago de Compostela. Facultad de Física; España
Fil: Breijo, M. P.. Universidad da Coruña; España
Fil: Señarís Rodríguez, M. A.. Universidad da Coruña; España
Fil: Sanchez, Rodolfo Daniel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Aging Effects
Magnetoresistance
Oxygen Stoichiometry
Perovskites
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:11336/68581
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/68581
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30)Mira, J.Rivas, J.Breijo, M. P.Señarís Rodríguez, M. A.Sanchez, Rodolfo DanielAging EffectsMagnetoresistanceOxygen StoichiometryPerovskiteshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A study of the reliability of the title compounds as a basis for magnetoresistive sensors is presented. For this purpose we have carried out long-term systematic studies of the evolution of the resistive and magnetic properties of samples synthesized by both ceramic and wet chemical routes, allowing them to age during several months. It is observed that, although the magnetic properties remain unaltered, their resistivity does change appreciably. With time, samples that are initially metallic over all the measured temperature range (T < 300 K), change to semiconductor-like behaviour at low temperatures and above their ferromagnetic to paramagnetic phase transition temperature, giving rise to a 'reentrant semiconducting behaviour' with associated high electrical noise, relaxation effects of the resistivity and even diodic behaviour.Fil: Mira, J.. Universidad de Santiago de Compostela. Facultad de Física; EspañaFil: Rivas, J.. Universidad de Santiago de Compostela. Facultad de Física; EspañaFil: Breijo, M. P.. Universidad da Coruña; EspañaFil: Señarís Rodríguez, M. A.. Universidad da Coruña; EspañaFil: Sanchez, Rodolfo Daniel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Science Sa2000-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68581Mira, J.; Rivas, J.; Breijo, M. P.; Señarís Rodríguez, M. A.; Sanchez, Rodolfo Daniel; Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30); Elsevier Science Sa; Sensors and Actuators A: Physical; 81; 1-3; 4-2000; 23-260924-4247CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0924424799001648info:eu-repo/semantics/altIdentifier/doi/10.1016/S0924-4247(99)00164-8info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:29Zoai:ri.conicet.gov.ar:11336/68581instacron: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 10:01:30.227CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30)
title Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30)
spellingShingle Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30)
Mira, J.
Aging Effects
Magnetoresistance
Oxygen Stoichiometry
Perovskites
title_short Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30)
title_full Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30)
title_fullStr Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30)
title_full_unstemmed Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30)
title_sort Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30)
dc.creator.none.fl_str_mv Mira, J.
Rivas, J.
Breijo, M. P.
Señarís Rodríguez, M. A.
Sanchez, Rodolfo Daniel
author Mira, J.
author_facet Mira, J.
Rivas, J.
Breijo, M. P.
Señarís Rodríguez, M. A.
Sanchez, Rodolfo Daniel
author_role author
author2 Rivas, J.
Breijo, M. P.
Señarís Rodríguez, M. A.
Sanchez, Rodolfo Daniel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Aging Effects
Magnetoresistance
Oxygen Stoichiometry
Perovskites
topic Aging Effects
Magnetoresistance
Oxygen Stoichiometry
Perovskites
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A study of the reliability of the title compounds as a basis for magnetoresistive sensors is presented. For this purpose we have carried out long-term systematic studies of the evolution of the resistive and magnetic properties of samples synthesized by both ceramic and wet chemical routes, allowing them to age during several months. It is observed that, although the magnetic properties remain unaltered, their resistivity does change appreciably. With time, samples that are initially metallic over all the measured temperature range (T < 300 K), change to semiconductor-like behaviour at low temperatures and above their ferromagnetic to paramagnetic phase transition temperature, giving rise to a 'reentrant semiconducting behaviour' with associated high electrical noise, relaxation effects of the resistivity and even diodic behaviour.
Fil: Mira, J.. Universidad de Santiago de Compostela. Facultad de Física; España
Fil: Rivas, J.. Universidad de Santiago de Compostela. Facultad de Física; España
Fil: Breijo, M. P.. Universidad da Coruña; España
Fil: Señarís Rodríguez, M. A.. Universidad da Coruña; España
Fil: Sanchez, Rodolfo Daniel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description A study of the reliability of the title compounds as a basis for magnetoresistive sensors is presented. For this purpose we have carried out long-term systematic studies of the evolution of the resistive and magnetic properties of samples synthesized by both ceramic and wet chemical routes, allowing them to age during several months. It is observed that, although the magnetic properties remain unaltered, their resistivity does change appreciably. With time, samples that are initially metallic over all the measured temperature range (T < 300 K), change to semiconductor-like behaviour at low temperatures and above their ferromagnetic to paramagnetic phase transition temperature, giving rise to a 'reentrant semiconducting behaviour' with associated high electrical noise, relaxation effects of the resistivity and even diodic behaviour.
publishDate 2000
dc.date.none.fl_str_mv 2000-04
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/11336/68581
Mira, J.; Rivas, J.; Breijo, M. P.; Señarís Rodríguez, M. A.; Sanchez, Rodolfo Daniel; Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30); Elsevier Science Sa; Sensors and Actuators A: Physical; 81; 1-3; 4-2000; 23-26
0924-4247
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68581
identifier_str_mv Mira, J.; Rivas, J.; Breijo, M. P.; Señarís Rodríguez, M. A.; Sanchez, Rodolfo Daniel; Effects of aging on the electrical resistivity of La1-xBxCoO3 perovskites (B = Sr, Ca, Ba; 0.20 ≤ x ≤ 0.30); Elsevier Science Sa; Sensors and Actuators A: Physical; 81; 1-3; 4-2000; 23-26
0924-4247
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/S0924424799001648
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0924-4247(99)00164-8
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 Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
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_ 1842269698963537920
score 13.13397

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