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dc.contributor.authorChaboy, Jesús-
dc.contributor.authorBoada, R.-
dc.contributor.authorLaguna-Marco, M. A.-
dc.contributor.authorGarcía-Hernández, M.-
dc.contributor.authorCarmona, N.-
dc.contributor.authorLlopis, J.-
dc.contributor.authorRuíz-González, M. L.-
dc.contributor.authorGonzález-Calbet, José M.-
dc.contributor.authorFernández Lozano, José Francisco-
dc.contributor.authorGarcía García-Tuñón, Miguel Ángel-
dc.contributor.authorPiquer, Cristina-
dc.identifier.citationPhysical Review B 82(6): 064411 (2010)es_ES
dc.description9 páginas, 9 figuras.-- PACS number(s): 75.50.Pp, 61.05.cj, 68.47.Gh, 78.70.Dmes_ES
dc.description.abstractWe present here direct experimental evidence of the magnetic polarization of Zn atoms in ZnO nanoparticles capped with different materials by means of x-ray magnetic circular dichroism (XMCD). Our results demonstrate that the magnetism in this material is intrinsic and relays in the ZnO conduction band. The analysis of both x-ray absorption spectroscopy and XMCD signals points out the formation of a well-defined interface between ZnO and the capping molecule in which the exotic magnetism arises at the hybridized band formed among Zn and the bonding atom of the molecule. The magnetic properties of these systems should critically depend on the details of this interface which may offer a new insight into the different observations for seemingly identical materials.es_ES
dc.description.sponsorshipThis work was partially supported by Spanish CICYT under Grants No. MAT2008-06542-C04-01, No. MAT2008- 06517-C02-01, No. CSD2009-00013, and No. FIS-2008- 06249, and by the EU project “BONSAI” (Grant No. LSHBCT- 2006-037639). The synchrotron radiation experiments were performed at SPring-8 (Proposals No. 2008B1773 and No. 2009B0024) and APS (Proposal No. GUP-10283). R.B. acknowledges the Ministerio de Eduación y Ciencia of Spain for a PhD. Grant. M.A.L. acknowledges the Ministerio de Ciencia e Innovación of Spain for a Juan de la Cierva grant.es_ES
dc.publisherAmerican Physical Societyes_ES
dc.titleEvidence of intrinsic magnetism in capped ZnO nanoparticleses_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderComisión Interministerial de Ciencia y Tecnología, CICYT (España)-
dc.contributor.funderEuropean Commission-
dc.contributor.funderMinisterio de Educación y Ciencia (España)-
dc.contributor.funderMinisterio de Ciencia e Innovación (España)-
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