Blue luminescence at room temperature in defective MgO films

Luminescence spectroscopy has been used to characterize MgO films prepared by rf-sputtering. A clear correlation is found between the appearance of an emission peak centered at approximately 460 nm and the detection of ferromagnetic ordering in the samples. We suggest that cationic vacancies are res...

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Detalhes bibliográficos
Autores: Martínez Boubeta, José Carlos, Martinez, A., Hernández Márquez, Sergi, Pellegrino, Paolo, Antony, Aldrin, Bertomeu i Balagueró, Joan, Balcells i Argemí, Lluís, Konstantinović, Zorica, Martínez Perea, Benjamin
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2011
País:España
Recursos:Universidad de Barcelona
Repositório:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/50468
Acesso em linha:https://hdl.handle.net/2445/50468
Access Level:Acceso aberto
Palavra-chave:Espintrònica
Semiconductors
Microelectrònica
Pel·lícules fines
Nanoestructures
Luminescència
Espectroscòpia de luminiscència
Òxid de magnesi
Ferromagnetisme
Spintronics
Microelectronics
Thin films
Nanostructures
Luminescence
Luminescence spectroscopy
Magnesium oxide
Ferromagnetism
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oai_identifier_str oai:diposit.ub.edu:2445/50468
network_acronym_str ES
network_name_str España
repository_id_str
spelling Blue luminescence at room temperature in defective MgO filmsMartínez Boubeta, José CarlosMartinez, A.Hernández Márquez, SergiPellegrino, PaoloAntony, AldrinBertomeu i Balagueró, JoanBalcells i Argemí, LluísKonstantinović, ZoricaMartínez Perea, BenjaminEspintrònicaSemiconductorsMicroelectrònicaPel·lícules finesNanoestructuresLuminescènciaEspectroscòpia de luminiscènciaÒxid de magnesiFerromagnetismeSpintronicsSemiconductorsMicroelectronicsThin filmsNanostructuresLuminescenceLuminescence spectroscopyMagnesium oxideFerromagnetismLuminescence spectroscopy has been used to characterize MgO films prepared by rf-sputtering. A clear correlation is found between the appearance of an emission peak centered at approximately 460 nm and the detection of ferromagnetic ordering in the samples. We suggest that cationic vacancies are responsible for the blue-light emission by introducing p states into the electronic band-gap. In accordance with this, our results strongly indicate that cationic vacancies are at the heart of the appearance of long-range magnetic ordering in MgO films.Elsevier Ltd2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/50468Articles publicats en revistes (Física Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: http://dx.doi.org/10.1016/j.ssc.2011.03.007Solid State Communications, 2011, vol. 151, num. 10, p. 751-753http://dx.doi.org/10.1016/j.ssc.2011.03.007(c) Elsevier Ltd, 2011info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/504682026-05-27T06:46:51Z
dc.title.none.fl_str_mv Blue luminescence at room temperature in defective MgO films
title Blue luminescence at room temperature in defective MgO films
spellingShingle Blue luminescence at room temperature in defective MgO films
Martínez Boubeta, José Carlos
Espintrònica
Semiconductors
Microelectrònica
Pel·lícules fines
Nanoestructures
Luminescència
Espectroscòpia de luminiscència
Òxid de magnesi
Ferromagnetisme
Spintronics
Semiconductors
Microelectronics
Thin films
Nanostructures
Luminescence
Luminescence spectroscopy
Magnesium oxide
Ferromagnetism
title_short Blue luminescence at room temperature in defective MgO films
title_full Blue luminescence at room temperature in defective MgO films
title_fullStr Blue luminescence at room temperature in defective MgO films
title_full_unstemmed Blue luminescence at room temperature in defective MgO films
title_sort Blue luminescence at room temperature in defective MgO films
dc.creator.none.fl_str_mv Martínez Boubeta, José Carlos
Martinez, A.
Hernández Márquez, Sergi
Pellegrino, Paolo
Antony, Aldrin
Bertomeu i Balagueró, Joan
Balcells i Argemí, Lluís
Konstantinović, Zorica
Martínez Perea, Benjamin
author Martínez Boubeta, José Carlos
author_facet Martínez Boubeta, José Carlos
Martinez, A.
Hernández Márquez, Sergi
Pellegrino, Paolo
Antony, Aldrin
Bertomeu i Balagueró, Joan
Balcells i Argemí, Lluís
Konstantinović, Zorica
Martínez Perea, Benjamin
author_role author
author2 Martinez, A.
Hernández Márquez, Sergi
Pellegrino, Paolo
Antony, Aldrin
Bertomeu i Balagueró, Joan
Balcells i Argemí, Lluís
Konstantinović, Zorica
Martínez Perea, Benjamin
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Espintrònica
Semiconductors
Microelectrònica
Pel·lícules fines
Nanoestructures
Luminescència
Espectroscòpia de luminiscència
Òxid de magnesi
Ferromagnetisme
Spintronics
Semiconductors
Microelectronics
Thin films
Nanostructures
Luminescence
Luminescence spectroscopy
Magnesium oxide
Ferromagnetism
topic Espintrònica
Semiconductors
Microelectrònica
Pel·lícules fines
Nanoestructures
Luminescència
Espectroscòpia de luminiscència
Òxid de magnesi
Ferromagnetisme
Spintronics
Semiconductors
Microelectronics
Thin films
Nanostructures
Luminescence
Luminescence spectroscopy
Magnesium oxide
Ferromagnetism
description Luminescence spectroscopy has been used to characterize MgO films prepared by rf-sputtering. A clear correlation is found between the appearance of an emission peak centered at approximately 460 nm and the detection of ferromagnetic ordering in the samples. We suggest that cationic vacancies are responsible for the blue-light emission by introducing p states into the electronic band-gap. In accordance with this, our results strongly indicate that cationic vacancies are at the heart of the appearance of long-range magnetic ordering in MgO films.
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/50468
url https://hdl.handle.net/2445/50468
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.ssc.2011.03.007
Solid State Communications, 2011, vol. 151, num. 10, p. 751-753
http://dx.doi.org/10.1016/j.ssc.2011.03.007
dc.rights.none.fl_str_mv (c) Elsevier Ltd, 2011
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Elsevier Ltd, 2011
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier Ltd
publisher.none.fl_str_mv Elsevier Ltd
dc.source.none.fl_str_mv Articles publicats en revistes (Física Aplicada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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