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dc.creatorPrados, C.es
dc.creatorMultigner, M.es
dc.creatorHernando, Antonioes
dc.creatorSánchez López, Juan Carloses
dc.creatorFernández Camacho, Asunciónes
dc.creatorConde Amiano, Clara Franciscaes
dc.creatorConde Amiano, Alejandroes
dc.date.accessioned2019-02-26T15:29:08Z
dc.date.available2019-02-26T15:29:08Z
dc.date.issued1999
dc.identifier.citationPrados, C., Multigner, M., Hernando, A., Sánchez López, J.C., Fernández Camacho, A., Conde Amiano, C.F. y Conde Amiano, A. (1999). Dependence of exchange anisotropy and coercivity on the Fe–oxide structure in oxygen-passivated Fe nanoparticles. Journal of Applied Physics, 85 (8), 6118-6120.
dc.identifier.issn0021-8979es
dc.identifier.issn1089-7550es
dc.identifier.urihttps://hdl.handle.net/11441/83523
dc.description.abstractUltrafine Fe particles have been prepared by the inert gas condensation method and subsequently oxygen passivated. The as-obtained particles consist in an Fe core surrounded by an amorphous Fe-oxide surface layer. The antiferromagnetic character of the Fe-oxide surface induces an exchange anisotropy in the ferromagnetic Fe core when the system is field cooled. Samples have been heat treated in vacuum at different temperatures. Structural changes of the Fe–O layer have been monitored by x-ray diffraction and transmission electron microscopy. Magnetic properties as coercivity, hysteresis loop shift, and evolution of magnetization with temperature have been analyzed for different oxide crystallization stages. A decrease of the exchange anisotropy strength is reported as the structural disorder of the surface oxide layer is decreased with thermal treatment.es
dc.formatapplication/pdfes
dc.language.isoenges
dc.publisherAmerican Institute of Physicses
dc.relation.ispartofJournal of Applied Physics, 85 (8), 6118-6120.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleDependence of exchange anisotropy and coercivity on the Fe–oxide structure in oxygen-passivated Fe nanoparticleses
dc.typeinfo:eu-repo/semantics/articlees
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessrightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Física de la Materia Condensadaes
dc.relation.publisherversionhttp://dx.doi.org/10.1063/1.370280es
dc.identifier.doi10.1063/1.370280es
idus.format.extent3 p.es
dc.journaltitleJournal of Applied Physicses
dc.publication.volumen85es
dc.publication.issue8es
dc.publication.initialPage6118es
dc.publication.endPage6120
dc.publication.endPage6120

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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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