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Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/52823
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dc.contributor.authorBalan, Ana-
dc.contributor.authorDerlet, Peter M.-
dc.contributor.authorFraile Rodríguez, Arantxa-
dc.contributor.authorBansmann, Joachim-
dc.contributor.authorYanes, Rocio-
dc.contributor.authorNowak, Ulrich-
dc.contributor.authorKleibert, Armin-
dc.contributor.authorNolting, Frithjof-
dc.date.accessioned2014-03-24T07:48:27Z-
dc.date.available2014-03-24T07:48:27Z-
dc.date.issued2014-03-10-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/2445/52823-
dc.description.abstractX-ray photoemission electron microscopy combined with x-ray magnetic circular dichroism is used to study the magnetic properties of individual iron nanoparticles with sizes ranging from 20 down to 8 nm. While the magnetocrystalline anisotropy of bulk iron suggests superparamagnetic behavior in this size range, ferromagnetically blocked particles are also found at all sizes. Spontaneous transitions from the blocked state to the superparamagnetic state are observed in single particles and suggest that the enhanced magnetic energy barriers in the ferromagnetic particles are due to metastable, structurally excited states with unexpected life times-
dc.format.extent5 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherAmerican Physical Society-
dc.relation.isformatofReproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevLett.112.107201-
dc.relation.ispartofPhysical Review Letters, 2014, vol. 112, p. 107201-1-107201-5-
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevLett.112.107201-
dc.rights(c) American Physical Society, 2014-
dc.sourceArticles publicats en revistes (Física de la Matèria Condensada)-
dc.subject.classificationFerro-
dc.subject.classificationNanopartícules-
dc.subject.classificationMetaestabilitat-
dc.subject.classificationFerromagnetisme-
dc.subject.classificationMatèria condensada-
dc.subject.classificationMicroscòpia electrònica-
dc.subject.otherIron-
dc.subject.otherNanoparticles-
dc.subject.otherMetastability-
dc.subject.otherFerromagnetism-
dc.subject.otherCondensed matter-
dc.subject.otherElectron microscopy-
dc.titleDirect Observation of Magnetic Metastability in Individual Iron Nanoparticles-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec635196-
dc.date.updated2014-03-24T07:48:28Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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