Origin of the large dispersion of magnetic properties in nanostructured oxides: FexO/Fe3O4 nanoparticles as a case study

The intimate relationship in transition-metal oxides between stoichiometry and physiochemical properties makes them appealing as tunable materials. These features become exacerbated when dealing with nanostructures. However, due to the complexity of nanoscale materials, establishing a distinct relat...

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Autores: Estrader i Bofarull, Marta|||0000-0003-3379-8234, López-Ortega, Alberto|||0000-0003-3440-4444, Golosovsky, I. V., Estrade, Sonia|||0000-0002-3340-877X, Gómez Roca, Alejandro|||0000-0001-6610-9197, Salazar Álvarez, Germán|||0000-0002-0671-435X, López-Conesa, Lluís, Tobia, Dina, Winkler, Elin, Ardisson, José D., Macedo, Waldemar A. A., Morphis, Andreas, Vasilakaki, Marianna, Trohidou, Kalliopi N., Gukasov, Arsen|||0000-0003-2763-468X, Mirebeau, Isabelle, Makarova, O. L., Zysler, Roberto D., Peiro, Francesca|||0000-0002-5697-0554, Baró, M. D.|||0000-0002-8636-1063, Bergström, Lennart, Nogués, Josep|||0000-0003-4616-1371
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:128070
Acceso en línea:https://ddd.uab.cat/record/128070
https://dx.doi.org/urn:doi:10.1039/C4NR06351A
Access Level:acceso abierto
Palabra clave:Magnetic properties
Nanostructured oxides
Nanoparticles
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spelling Origin of the large dispersion of magnetic properties in nanostructured oxides: FexO/Fe3O4 nanoparticles as a case studyEstrader i Bofarull, Marta|||0000-0003-3379-8234López-Ortega, Alberto|||0000-0003-3440-4444Golosovsky, I. V.Estrade, Sonia|||0000-0002-3340-877XGómez Roca, Alejandro|||0000-0001-6610-9197Salazar Álvarez, Germán|||0000-0002-0671-435XLópez-Conesa, LluísTobia, DinaWinkler, ElinArdisson, José D.Macedo, Waldemar A. A.Morphis, AndreasVasilakaki, MariannaTrohidou, Kalliopi N.Gukasov, Arsen|||0000-0003-2763-468XMirebeau, IsabelleMakarova, O. L.Zysler, Roberto D.Peiro, Francesca|||0000-0002-5697-0554Baró, M. D.|||0000-0002-8636-1063Bergström, LennartNogués, Josep|||0000-0003-4616-1371Magnetic propertiesNanostructured oxidesNanoparticlesThe intimate relationship in transition-metal oxides between stoichiometry and physiochemical properties makes them appealing as tunable materials. These features become exacerbated when dealing with nanostructures. However, due to the complexity of nanoscale materials, establishing a distinct relationship between structure-morphology and functionalities is often complicated. In this regard, in the FexO/Fe3O4 system a largely unexplained broad dispersion of magnetic properties has been observed. Here we show, thanks to a comprehensive multi-technique approach, a clear correlation between magneto-structural properties in large (45 nm) and small (9 nm) FexO/Fe3O4 core/shell nanoparticles that can explain the spread of magnetic behaviors. The results reveal that while the FexO core in the large nanoparticles is antiferromagnetic and has bulk-like stoichiometry and unit-cell parameters, the FexO core in the small particles is highly non-stoichiometric and strained, displaying no significant antiferromagnetism. These results highlight the importance of ample characterization to fully understand the properties of nanostructured metal oxides. 22015-01-0120152015-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/128070https://dx.doi.org/urn:doi:10.1039/C4NR06351Areponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 247518European Commission https://doi.org/10.13039/501100000780 318901Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2013-48628-RMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 MAT2011-27380-C02-01Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 MAT2010-20616-C02-02Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 CSD2009-00013Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-1015Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2011/BP-B00209Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2009/SGR-35open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/2.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:1280702026-06-06T12:50:31Z
dc.title.none.fl_str_mv Origin of the large dispersion of magnetic properties in nanostructured oxides: FexO/Fe3O4 nanoparticles as a case study
title Origin of the large dispersion of magnetic properties in nanostructured oxides: FexO/Fe3O4 nanoparticles as a case study
spellingShingle Origin of the large dispersion of magnetic properties in nanostructured oxides: FexO/Fe3O4 nanoparticles as a case study
Estrader i Bofarull, Marta|||0000-0003-3379-8234
Magnetic properties
Nanostructured oxides
Nanoparticles
title_short Origin of the large dispersion of magnetic properties in nanostructured oxides: FexO/Fe3O4 nanoparticles as a case study
title_full Origin of the large dispersion of magnetic properties in nanostructured oxides: FexO/Fe3O4 nanoparticles as a case study
title_fullStr Origin of the large dispersion of magnetic properties in nanostructured oxides: FexO/Fe3O4 nanoparticles as a case study
title_full_unstemmed Origin of the large dispersion of magnetic properties in nanostructured oxides: FexO/Fe3O4 nanoparticles as a case study
title_sort Origin of the large dispersion of magnetic properties in nanostructured oxides: FexO/Fe3O4 nanoparticles as a case study
dc.creator.none.fl_str_mv Estrader i Bofarull, Marta|||0000-0003-3379-8234
López-Ortega, Alberto|||0000-0003-3440-4444
Golosovsky, I. V.
Estrade, Sonia|||0000-0002-3340-877X
Gómez Roca, Alejandro|||0000-0001-6610-9197
Salazar Álvarez, Germán|||0000-0002-0671-435X
López-Conesa, Lluís
Tobia, Dina
Winkler, Elin
Ardisson, José D.
Macedo, Waldemar A. A.
Morphis, Andreas
Vasilakaki, Marianna
Trohidou, Kalliopi N.
Gukasov, Arsen|||0000-0003-2763-468X
Mirebeau, Isabelle
Makarova, O. L.
Zysler, Roberto D.
Peiro, Francesca|||0000-0002-5697-0554
Baró, M. D.|||0000-0002-8636-1063
Bergström, Lennart
Nogués, Josep|||0000-0003-4616-1371
author Estrader i Bofarull, Marta|||0000-0003-3379-8234
author_facet Estrader i Bofarull, Marta|||0000-0003-3379-8234
López-Ortega, Alberto|||0000-0003-3440-4444
Golosovsky, I. V.
Estrade, Sonia|||0000-0002-3340-877X
Gómez Roca, Alejandro|||0000-0001-6610-9197
Salazar Álvarez, Germán|||0000-0002-0671-435X
López-Conesa, Lluís
Tobia, Dina
Winkler, Elin
Ardisson, José D.
Macedo, Waldemar A. A.
Morphis, Andreas
Vasilakaki, Marianna
Trohidou, Kalliopi N.
Gukasov, Arsen|||0000-0003-2763-468X
Mirebeau, Isabelle
Makarova, O. L.
Zysler, Roberto D.
Peiro, Francesca|||0000-0002-5697-0554
Baró, M. D.|||0000-0002-8636-1063
Bergström, Lennart
Nogués, Josep|||0000-0003-4616-1371
author_role author
author2 López-Ortega, Alberto|||0000-0003-3440-4444
Golosovsky, I. V.
Estrade, Sonia|||0000-0002-3340-877X
Gómez Roca, Alejandro|||0000-0001-6610-9197
Salazar Álvarez, Germán|||0000-0002-0671-435X
López-Conesa, Lluís
Tobia, Dina
Winkler, Elin
Ardisson, José D.
Macedo, Waldemar A. A.
Morphis, Andreas
Vasilakaki, Marianna
Trohidou, Kalliopi N.
Gukasov, Arsen|||0000-0003-2763-468X
Mirebeau, Isabelle
Makarova, O. L.
Zysler, Roberto D.
Peiro, Francesca|||0000-0002-5697-0554
Baró, M. D.|||0000-0002-8636-1063
Bergström, Lennart
Nogués, Josep|||0000-0003-4616-1371
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Magnetic properties
Nanostructured oxides
Nanoparticles
topic Magnetic properties
Nanostructured oxides
Nanoparticles
description The intimate relationship in transition-metal oxides between stoichiometry and physiochemical properties makes them appealing as tunable materials. These features become exacerbated when dealing with nanostructures. However, due to the complexity of nanoscale materials, establishing a distinct relationship between structure-morphology and functionalities is often complicated. In this regard, in the FexO/Fe3O4 system a largely unexplained broad dispersion of magnetic properties has been observed. Here we show, thanks to a comprehensive multi-technique approach, a clear correlation between magneto-structural properties in large (45 nm) and small (9 nm) FexO/Fe3O4 core/shell nanoparticles that can explain the spread of magnetic behaviors. The results reveal that while the FexO core in the large nanoparticles is antiferromagnetic and has bulk-like stoichiometry and unit-cell parameters, the FexO core in the small particles is highly non-stoichiometric and strained, displaying no significant antiferromagnetism. These results highlight the importance of ample characterization to fully understand the properties of nanostructured metal oxides.
publishDate 2015
dc.date.none.fl_str_mv 2
2015-01-01
2015
2015-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/128070
https://dx.doi.org/urn:doi:10.1039/C4NR06351A
url https://ddd.uab.cat/record/128070
https://dx.doi.org/urn:doi:10.1039/C4NR06351A
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission https://doi.org/10.13039/501100000780 247518
European Commission https://doi.org/10.13039/501100000780 318901
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2013-48628-R
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295
Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 MAT2011-27380-C02-01
Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 MAT2010-20616-C02-02
Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 CSD2009-00013
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-1015
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2011/BP-B00209
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2009/SGR-35
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/2.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/2.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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