Magnetic and structural study of Cu-doped TiO₂ thin films

Autores
Rodríguez Torres, Claudia Elena; Golmar, Federico; Cabrera, Alejandra Fabiana; Errico, Leonardo Antonio; Mudarra Navarro, Azucena Marisol; Rentería, Mario; Sánchez, Francisco Homero; Duhalde, S.
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Transparent pure and Cu-doped (2.5, 5 and 10 at.%) anatase TiO₂ thin films were grown by pulsed laser deposition technique on LaAlO₃ substrates. The samples were structurally characterized by X-ray absorption spectroscopy and X-ray diffraction. The magnetic properties were measured using a SQUID. All films have a FM-like behaviour. In the case of the Cu-doped samples, the magnetic cycles are almost independent of the Cu concentration. Cu atoms are forming CuO and/or substituting Ti in TiO₂. The thermal treatment in air promotes the CuO segregation. Since CuO is antiferromagnetic, the magnetic signals present in the films could be assigned to Cu substitutionally replacing cations in TiO₂.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
Ferromagnetic
Semiconductors
Thin films
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/131056
Acceder
id SEDICI_70068a43312f4cd986fae225574d7851
oai_identifier_str oai:sedici.unlp.edu.ar:10915/131056
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Magnetic and structural study of Cu-doped TiO₂ thin filmsRodríguez Torres, Claudia ElenaGolmar, FedericoCabrera, Alejandra FabianaErrico, Leonardo AntonioMudarra Navarro, Azucena MarisolRentería, MarioSánchez, Francisco HomeroDuhalde, S.Ciencias ExactasFísicaFerromagneticSemiconductorsThin filmsTransparent pure and Cu-doped (2.5, 5 and 10 at.%) anatase TiO₂ thin films were grown by pulsed laser deposition technique on LaAlO₃ substrates. The samples were structurally characterized by X-ray absorption spectroscopy and X-ray diffraction. The magnetic properties were measured using a SQUID. All films have a FM-like behaviour. In the case of the Cu-doped samples, the magnetic cycles are almost independent of the Cu concentration. Cu atoms are forming CuO and/or substituting Ti in TiO₂. The thermal treatment in air promotes the CuO segregation. Since CuO is antiferromagnetic, the magnetic signals present in the films could be assigned to Cu substitutionally replacing cations in TiO₂.Facultad de Ciencias Exactas2007-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf365-367http://sedici.unlp.edu.ar/handle/10915/131056enginfo:eu-repo/semantics/altIdentifier/issn/0169-4332info:eu-repo/semantics/altIdentifier/arxiv/cond-mat/0702515info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apsusc.2007.07.122info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:23:04Zoai:sedici.unlp.edu.ar:10915/131056Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:23:05.02SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Magnetic and structural study of Cu-doped TiO₂ thin films
title Magnetic and structural study of Cu-doped TiO₂ thin films
spellingShingle Magnetic and structural study of Cu-doped TiO₂ thin films
Rodríguez Torres, Claudia Elena
Ciencias Exactas
Física
Ferromagnetic
Semiconductors
Thin films
title_short Magnetic and structural study of Cu-doped TiO₂ thin films
title_full Magnetic and structural study of Cu-doped TiO₂ thin films
title_fullStr Magnetic and structural study of Cu-doped TiO₂ thin films
title_full_unstemmed Magnetic and structural study of Cu-doped TiO₂ thin films
title_sort Magnetic and structural study of Cu-doped TiO₂ thin films
dc.creator.none.fl_str_mv Rodríguez Torres, Claudia Elena
Golmar, Federico
Cabrera, Alejandra Fabiana
Errico, Leonardo Antonio
Mudarra Navarro, Azucena Marisol
Rentería, Mario
Sánchez, Francisco Homero
Duhalde, S.
author Rodríguez Torres, Claudia Elena
author_facet Rodríguez Torres, Claudia Elena
Golmar, Federico
Cabrera, Alejandra Fabiana
Errico, Leonardo Antonio
Mudarra Navarro, Azucena Marisol
Rentería, Mario
Sánchez, Francisco Homero
Duhalde, S.
author_role author
author2 Golmar, Federico
Cabrera, Alejandra Fabiana
Errico, Leonardo Antonio
Mudarra Navarro, Azucena Marisol
Rentería, Mario
Sánchez, Francisco Homero
Duhalde, S.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
Ferromagnetic
Semiconductors
Thin films
topic Ciencias Exactas
Física
Ferromagnetic
Semiconductors
Thin films
dc.description.none.fl_txt_mv Transparent pure and Cu-doped (2.5, 5 and 10 at.%) anatase TiO₂ thin films were grown by pulsed laser deposition technique on LaAlO₃ substrates. The samples were structurally characterized by X-ray absorption spectroscopy and X-ray diffraction. The magnetic properties were measured using a SQUID. All films have a FM-like behaviour. In the case of the Cu-doped samples, the magnetic cycles are almost independent of the Cu concentration. Cu atoms are forming CuO and/or substituting Ti in TiO₂. The thermal treatment in air promotes the CuO segregation. Since CuO is antiferromagnetic, the magnetic signals present in the films could be assigned to Cu substitutionally replacing cations in TiO₂.
Facultad de Ciencias Exactas
description Transparent pure and Cu-doped (2.5, 5 and 10 at.%) anatase TiO₂ thin films were grown by pulsed laser deposition technique on LaAlO₃ substrates. The samples were structurally characterized by X-ray absorption spectroscopy and X-ray diffraction. The magnetic properties were measured using a SQUID. All films have a FM-like behaviour. In the case of the Cu-doped samples, the magnetic cycles are almost independent of the Cu concentration. Cu atoms are forming CuO and/or substituting Ti in TiO₂. The thermal treatment in air promotes the CuO segregation. Since CuO is antiferromagnetic, the magnetic signals present in the films could be assigned to Cu substitutionally replacing cations in TiO₂.
publishDate 2007
dc.date.none.fl_str_mv 2007-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/131056
url http://sedici.unlp.edu.ar/handle/10915/131056
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0169-4332
info:eu-repo/semantics/altIdentifier/arxiv/cond-mat/0702515
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apsusc.2007.07.122
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
365-367
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.22299

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