Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films

Autores
Golmar, Federico; Mudarra Navarro, Azucena Marisol; Rodríguez Torres, Claudia Elena; Sánchez, Francisco Homero; Saccone, Fabio Daniel; Dos Santos Claro, Paula Cecilia; Benitez, Guillermo Alfredo; Schilardi, Patricia Laura
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Commercial LaAlO₃ substrates were thermally cycled simulating a procedure similar to those followed during TiO₂ and SnO₂ dilute magnetic semiconductors’ film pulsed laser deposition. Ferromagneticlike behavior was found in some substrates, in which metallic iron impurities were detected by x-ray photoelectron spectroscopy and total reflection x-ray fluorescence measurements. A thorough experimental investigation, using high resolution techniques, showed that these impurities were introduced by the procedure used to fix the substrates to the oven silicon holders. It is suggested that magnetism observed previously in nominally pure SnO₂ films is of extrinsic origin.
Instituto de Física La Plata
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Física
ferromagnetism
electromagnetism
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:10915/162829
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/162829
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide filmsGolmar, FedericoMudarra Navarro, Azucena MarisolRodríguez Torres, Claudia ElenaSánchez, Francisco HomeroSaccone, Fabio DanielDos Santos Claro, Paula CeciliaBenitez, Guillermo AlfredoSchilardi, Patricia LauraCiencias ExactasFísicaferromagnetismelectromagnetismCommercial LaAlO₃ substrates were thermally cycled simulating a procedure similar to those followed during TiO₂ and SnO₂ dilute magnetic semiconductors’ film pulsed laser deposition. Ferromagneticlike behavior was found in some substrates, in which metallic iron impurities were detected by x-ray photoelectron spectroscopy and total reflection x-ray fluorescence measurements. A thorough experimental investigation, using high resolution techniques, showed that these impurities were introduced by the procedure used to fix the substrates to the oven silicon holders. It is suggested that magnetism observed previously in nominally pure SnO₂ films is of extrinsic origin.Instituto de Física La PlataInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/162829enginfo:eu-repo/semantics/altIdentifier/issn/0003-6951info:eu-repo/semantics/altIdentifier/issn/1077-3118info:eu-repo/semantics/altIdentifier/doi/10.1063/1.2952839info: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:UNLP2025-10-22T17:23:44Zoai:sedici.unlp.edu.ar:10915/162829Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:23:45.156SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
title Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
spellingShingle Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
Golmar, Federico
Ciencias Exactas
Física
ferromagnetism
electromagnetism
title_short Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
title_full Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
title_fullStr Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
title_full_unstemmed Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
title_sort Extrinsic origin of ferromagnetism in single crystalline LaAlO₃ substrates and oxide films
dc.creator.none.fl_str_mv Golmar, Federico
Mudarra Navarro, Azucena Marisol
Rodríguez Torres, Claudia Elena
Sánchez, Francisco Homero
Saccone, Fabio Daniel
Dos Santos Claro, Paula Cecilia
Benitez, Guillermo Alfredo
Schilardi, Patricia Laura
author Golmar, Federico
author_facet Golmar, Federico
Mudarra Navarro, Azucena Marisol
Rodríguez Torres, Claudia Elena
Sánchez, Francisco Homero
Saccone, Fabio Daniel
Dos Santos Claro, Paula Cecilia
Benitez, Guillermo Alfredo
Schilardi, Patricia Laura
author_role author
author2 Mudarra Navarro, Azucena Marisol
Rodríguez Torres, Claudia Elena
Sánchez, Francisco Homero
Saccone, Fabio Daniel
Dos Santos Claro, Paula Cecilia
Benitez, Guillermo Alfredo
Schilardi, Patricia Laura
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
ferromagnetism
electromagnetism
topic Ciencias Exactas
Física
ferromagnetism
electromagnetism
dc.description.none.fl_txt_mv Commercial LaAlO₃ substrates were thermally cycled simulating a procedure similar to those followed during TiO₂ and SnO₂ dilute magnetic semiconductors’ film pulsed laser deposition. Ferromagneticlike behavior was found in some substrates, in which metallic iron impurities were detected by x-ray photoelectron spectroscopy and total reflection x-ray fluorescence measurements. A thorough experimental investigation, using high resolution techniques, showed that these impurities were introduced by the procedure used to fix the substrates to the oven silicon holders. It is suggested that magnetism observed previously in nominally pure SnO₂ films is of extrinsic origin.
Instituto de Física La Plata
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description Commercial LaAlO₃ substrates were thermally cycled simulating a procedure similar to those followed during TiO₂ and SnO₂ dilute magnetic semiconductors’ film pulsed laser deposition. Ferromagneticlike behavior was found in some substrates, in which metallic iron impurities were detected by x-ray photoelectron spectroscopy and total reflection x-ray fluorescence measurements. A thorough experimental investigation, using high resolution techniques, showed that these impurities were introduced by the procedure used to fix the substrates to the oven silicon holders. It is suggested that magnetism observed previously in nominally pure SnO₂ films is of extrinsic origin.
publishDate 2008
dc.date.none.fl_str_mv 2008
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/10915/162829
url http://sedici.unlp.edu.ar/handle/10915/162829
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0003-6951
info:eu-repo/semantics/altIdentifier/issn/1077-3118
info:eu-repo/semantics/altIdentifier/doi/10.1063/1.2952839
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
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 12.982451

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