Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticles

Krycka, K. L.; Suriñach, Santiago|||0000-0001-8125-0594; Borchers, J. A.; Laver, M.; Salazar Álvarez, Germán|||0000-0002-0671-435X; López-Ortega, Alberto|||0000-0003-3440-4444; Estrader i Bofarull, Marta|||0000-0003-3379-8234; Baró, M. D.|||0000-0002-8636-1063; Sort, Jordi|||0000-0003-1213-3639; Nogués, Josep|||0000-0003-4616-1371

Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticles

The magnetic responses of two nanoparticle systems comprised of Fe3 O 4/γ-Mn2O3 (soft ferrimagnetic, FM/hard FM) and Fe3O4/MnO/γ-Mn2 O3 (soft FM / antiferromagnetic, AFM/hard FM) are compared, where the MnO serves to physically decouple the FM layers. Variation in the temperature and applied field a...

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Autores:	Krycka, K. L., Suriñach, Santiago\|\|\|0000-0001-8125-0594, Borchers, J. A., Laver, M., Salazar Álvarez, Germán\|\|\|0000-0002-0671-435X, López-Ortega, Alberto\|\|\|0000-0003-3440-4444, Estrader i Bofarull, Marta\|\|\|0000-0003-3379-8234, Baró, M. D.\|\|\|0000-0002-8636-1063, Sort, Jordi\|\|\|0000-0003-1213-3639, Nogués, Josep\|\|\|0000-0003-4616-1371
Tipo de recurso:	artículo
Fecha de publicación:	2013
País:	España
Institución:	Universitat Autònoma de Barcelona
Repositorio:	Dipòsit Digital de Documents de la UAB
Idioma:	inglés
OAI Identifier:	oai:ddd.uab.cat:112840
Acceso en línea:	https://ddd.uab.cat/record/112840 https://dx.doi.org/urn:doi:10.1063/1.4801423
Access Level:	acceso abierto
Palabra clave:	Materials Nanopartícules

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spelling	Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticlesKrycka, K. L.Suriñach, Santiago\|\|\|0000-0001-8125-0594Borchers, J. A.Laver, M.Salazar Álvarez, Germán\|\|\|0000-0002-0671-435XLópez-Ortega, Alberto\|\|\|0000-0003-3440-4444Estrader i Bofarull, Marta\|\|\|0000-0003-3379-8234Baró, M. D.\|\|\|0000-0002-8636-1063Sort, Jordi\|\|\|0000-0003-1213-3639Nogués, Josep\|\|\|0000-0003-4616-1371MaterialsNanopartículesThe magnetic responses of two nanoparticle systems comprised of Fe3 O 4/γ-Mn2O3 (soft ferrimagnetic, FM/hard FM) and Fe3O4/MnO/γ-Mn2 O3 (soft FM / antiferromagnetic, AFM/hard FM) are compared, where the MnO serves to physically decouple the FM layers. Variation in the temperature and applied field allows for Small Angle Neutron Scattering (SANS) measurements of the magnetic moments both parallel and perpendicular to an applied field. Data for the bilayer particle indicate that the graded ferrimagnetic layers are coupled and respond to the field as a single unit. For the trilayer nanoparticles, magnetometry suggests a Curie temperature (TC)≈ 40 K for the outer γ-Mn2O3 component, yet SANS reveals an increase in the magnetization associated with outer layer that is perpendicular to the applied field above TC during magnetic reversal. This result suggests that the γ-Mn2O3 magnetically reorients relative to the applied field as the temperature is increased above 40 K. 22013-01-0120132013-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/112840https://dx.doi.org/urn:doi:10.1063/1.4801423reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2010-20616-C02Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2009/SGR-1292open accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:1128402026-06-06T12:50:31Z
dc.title.none.fl_str_mv	Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticles
title	Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticles
spellingShingle	Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticles Krycka, K. L. Materials Nanopartícules
title_short	Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticles
title_full	Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticles
title_fullStr	Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticles
title_full_unstemmed	Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticles
title_sort	Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticles
dc.creator.none.fl_str_mv	Krycka, K. L. Suriñach, Santiago\|\|\|0000-0001-8125-0594 Borchers, J. A. Laver, M. Salazar Álvarez, Germán\|\|\|0000-0002-0671-435X López-Ortega, Alberto\|\|\|0000-0003-3440-4444 Estrader i Bofarull, Marta\|\|\|0000-0003-3379-8234 Baró, M. D.\|\|\|0000-0002-8636-1063 Sort, Jordi\|\|\|0000-0003-1213-3639 Nogués, Josep\|\|\|0000-0003-4616-1371
author	Krycka, K. L.
author_facet	Krycka, K. L. Suriñach, Santiago\|\|\|0000-0001-8125-0594 Borchers, J. A. Laver, M. Salazar Álvarez, Germán\|\|\|0000-0002-0671-435X López-Ortega, Alberto\|\|\|0000-0003-3440-4444 Estrader i Bofarull, Marta\|\|\|0000-0003-3379-8234 Baró, M. D.\|\|\|0000-0002-8636-1063 Sort, Jordi\|\|\|0000-0003-1213-3639 Nogués, Josep\|\|\|0000-0003-4616-1371
author_role	author
author2	Suriñach, Santiago\|\|\|0000-0001-8125-0594 Borchers, J. A. Laver, M. Salazar Álvarez, Germán\|\|\|0000-0002-0671-435X López-Ortega, Alberto\|\|\|0000-0003-3440-4444 Estrader i Bofarull, Marta\|\|\|0000-0003-3379-8234 Baró, M. D.\|\|\|0000-0002-8636-1063 Sort, Jordi\|\|\|0000-0003-1213-3639 Nogués, Josep\|\|\|0000-0003-4616-1371
author2_role	author author author author author author author author author
dc.subject.none.fl_str_mv	Materials Nanopartícules
topic	Materials Nanopartícules
description	The magnetic responses of two nanoparticle systems comprised of Fe3 O 4/γ-Mn2O3 (soft ferrimagnetic, FM/hard FM) and Fe3O4/MnO/γ-Mn2 O3 (soft FM / antiferromagnetic, AFM/hard FM) are compared, where the MnO serves to physically decouple the FM layers. Variation in the temperature and applied field allows for Small Angle Neutron Scattering (SANS) measurements of the magnetic moments both parallel and perpendicular to an applied field. Data for the bilayer particle indicate that the graded ferrimagnetic layers are coupled and respond to the field as a single unit. For the trilayer nanoparticles, magnetometry suggests a Curie temperature (TC)≈ 40 K for the outer γ-Mn2O3 component, yet SANS reveals an increase in the magnetization associated with outer layer that is perpendicular to the applied field above TC during magnetic reversal. This result suggests that the γ-Mn2O3 magnetically reorients relative to the applied field as the temperature is increased above 40 K.
publishDate	2013
dc.date.none.fl_str_mv	2 2013-01-01 2013 2013-01-01
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/112840 https://dx.doi.org/urn:doi:10.1063/1.4801423
url	https://ddd.uab.cat/record/112840 https://dx.doi.org/urn:doi:10.1063/1.4801423
dc.language.none.fl_str_mv	Inglés eng
language_invalid_str_mv	Inglés
language	eng
dc.relation.none.fl_str_mv	Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2010-20616-C02 Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2009/SGR-1292
dc.rights.none.fl_str_mv	open access http://purl.org/coar/access_right/c_abf2 https://rightsstatements.org/vocab/InC/1.0/
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://rightsstatements.org/vocab/InC/1.0/
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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Correlating material-specific layers and magnetic distributions within onion-like Fe 3 O 4 /MnO/ γ- Mn2 O3 core/shell nanoparticles

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