Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition

Autores
Villafuerte, Manuel Jose; Bridoux, German; Heluani S. P.; Tirado, Monica Cecilia; Grosse, Constantino
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Electric behavior of polycrystalline La 0.5 Ca 0.5 MnO 3 thin films, pulsed laser deposited on a (100) silicon substrate, is reported and discussed. An electrically induced metal-insulating transition around 150 K is found, which is voltage and thickness dependent. At low temperatures, the film conductivity is non-Ohmic and moderate electric fields lead to resistivity switching towards metaestable low-resistive states. Impedance spectroscopy measurements were also performed in order to determine the film dielectric permittivity and conductivity and to estimate the characteristic metal-semiconductor interface parameters. The obtained results show that the fraction of ferromagnetic metallic regions does not change when a voltage is applied, and that the mechanism responsible for the low temperature metal insulator transition and the conduction behavior is the appearance of connective paths due to the enhanced mobility of carriers activated by the electric field.
Fil: Villafuerte, Manuel Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Sólido; Argentina
Fil: Bridoux, German. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Sólido; Argentina
Fil: Heluani S. P.. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Sólido; Argentina
Fil: Tirado, Monica Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucuman. Facultad de Cs.exactas y Tecnología. Departamento de Física. Laboratorio de Dielectricos; Argentina
Fil: Grosse, Constantino. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucuman. Facultad de Cs.exactas y Tecnología. Departamento de Física. Laboratorio de Dielectricos; Argentina
Materia
MANGANITE
METAL-INSULATOR
IMPEDANCE SPECTROSCOPY
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:11336/279370
Acceder
id CONICETDig_f68cc9e7ee7410bec49dca3d9b9b1e2d
oai_identifier_str oai:ri.conicet.gov.ar:11336/279370
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transitionVillafuerte, Manuel JoseBridoux, GermanHeluani S. P.Tirado, Monica CeciliaGrosse, ConstantinoMANGANITEMETAL-INSULATORIMPEDANCE SPECTROSCOPYhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Electric behavior of polycrystalline La 0.5 Ca 0.5 MnO 3 thin films, pulsed laser deposited on a (100) silicon substrate, is reported and discussed. An electrically induced metal-insulating transition around 150 K is found, which is voltage and thickness dependent. At low temperatures, the film conductivity is non-Ohmic and moderate electric fields lead to resistivity switching towards metaestable low-resistive states. Impedance spectroscopy measurements were also performed in order to determine the film dielectric permittivity and conductivity and to estimate the characteristic metal-semiconductor interface parameters. The obtained results show that the fraction of ferromagnetic metallic regions does not change when a voltage is applied, and that the mechanism responsible for the low temperature metal insulator transition and the conduction behavior is the appearance of connective paths due to the enhanced mobility of carriers activated by the electric field.Fil: Villafuerte, Manuel Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Sólido; ArgentinaFil: Bridoux, German. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Sólido; ArgentinaFil: Heluani S. P.. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Sólido; ArgentinaFil: Tirado, Monica Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucuman. Facultad de Cs.exactas y Tecnología. Departamento de Física. Laboratorio de Dielectricos; ArgentinaFil: Grosse, Constantino. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucuman. Facultad de Cs.exactas y Tecnología. Departamento de Física. Laboratorio de Dielectricos; ArgentinaElsevier Science SA2010-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/279370Villafuerte, Manuel Jose; Bridoux, German; Heluani S. P.; Tirado, Monica Cecilia; Grosse, Constantino; Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition; Elsevier Science SA; Thin Solid Films; 518; 8; 2-2010; 2261-22650040-6090CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S004060900901284Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.tsf.2009.07.149info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-26T10:31:27Zoai:ri.conicet.gov.ar:11336/279370instacron: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:34982026-02-26 10:31:27.732CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition
title Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition
spellingShingle Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition
Villafuerte, Manuel Jose
MANGANITE
METAL-INSULATOR
IMPEDANCE SPECTROSCOPY
title_short Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition
title_full Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition
title_fullStr Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition
title_full_unstemmed Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition
title_sort Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition
dc.creator.none.fl_str_mv Villafuerte, Manuel Jose
Bridoux, German
Heluani S. P.
Tirado, Monica Cecilia
Grosse, Constantino
author Villafuerte, Manuel Jose
author_facet Villafuerte, Manuel Jose
Bridoux, German
Heluani S. P.
Tirado, Monica Cecilia
Grosse, Constantino
author_role author
author2 Bridoux, German
Heluani S. P.
Tirado, Monica Cecilia
Grosse, Constantino
author2_role author
author
author
author
dc.subject.none.fl_str_mv MANGANITE
METAL-INSULATOR
IMPEDANCE SPECTROSCOPY
topic MANGANITE
METAL-INSULATOR
IMPEDANCE SPECTROSCOPY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Electric behavior of polycrystalline La 0.5 Ca 0.5 MnO 3 thin films, pulsed laser deposited on a (100) silicon substrate, is reported and discussed. An electrically induced metal-insulating transition around 150 K is found, which is voltage and thickness dependent. At low temperatures, the film conductivity is non-Ohmic and moderate electric fields lead to resistivity switching towards metaestable low-resistive states. Impedance spectroscopy measurements were also performed in order to determine the film dielectric permittivity and conductivity and to estimate the characteristic metal-semiconductor interface parameters. The obtained results show that the fraction of ferromagnetic metallic regions does not change when a voltage is applied, and that the mechanism responsible for the low temperature metal insulator transition and the conduction behavior is the appearance of connective paths due to the enhanced mobility of carriers activated by the electric field.
Fil: Villafuerte, Manuel Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Sólido; Argentina
Fil: Bridoux, German. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Sólido; Argentina
Fil: Heluani S. P.. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Sólido; Argentina
Fil: Tirado, Monica Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucuman. Facultad de Cs.exactas y Tecnología. Departamento de Física. Laboratorio de Dielectricos; Argentina
Fil: Grosse, Constantino. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucuman. Facultad de Cs.exactas y Tecnología. Departamento de Física. Laboratorio de Dielectricos; Argentina
description Electric behavior of polycrystalline La 0.5 Ca 0.5 MnO 3 thin films, pulsed laser deposited on a (100) silicon substrate, is reported and discussed. An electrically induced metal-insulating transition around 150 K is found, which is voltage and thickness dependent. At low temperatures, the film conductivity is non-Ohmic and moderate electric fields lead to resistivity switching towards metaestable low-resistive states. Impedance spectroscopy measurements were also performed in order to determine the film dielectric permittivity and conductivity and to estimate the characteristic metal-semiconductor interface parameters. The obtained results show that the fraction of ferromagnetic metallic regions does not change when a voltage is applied, and that the mechanism responsible for the low temperature metal insulator transition and the conduction behavior is the appearance of connective paths due to the enhanced mobility of carriers activated by the electric field.
publishDate 2010
dc.date.none.fl_str_mv 2010-02
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/11336/279370
Villafuerte, Manuel Jose; Bridoux, German; Heluani S. P.; Tirado, Monica Cecilia; Grosse, Constantino; Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition; Elsevier Science SA; Thin Solid Films; 518; 8; 2-2010; 2261-2265
0040-6090
CONICET Digital
CONICET
url http://hdl.handle.net/11336/279370
identifier_str_mv Villafuerte, Manuel Jose; Bridoux, German; Heluani S. P.; Tirado, Monica Cecilia; Grosse, Constantino; Dielectric permittivity and conductivity spectra of La0.5Ca0.5MnO3 thin films presenting electric field induced metal–insulator transition; Elsevier Science SA; Thin Solid Films; 518; 8; 2-2010; 2261-2265
0040-6090
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/S004060900901284X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tsf.2009.07.149
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
application/pdf
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_ 1858306092997541888
score 12.665996

Publicaciones similares