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dc.contributor.authorAndrés, Alicia de-
dc.contributor.authorRamírez, Rafael-
dc.contributor.authorGarcía-Hernández, M.-
dc.contributor.authorLambert-Milot, S.-
dc.contributor.authorMasut, R. A.-
dc.date.accessioned2013-05-03T10:08:55Z-
dc.date.available2013-05-03T10:08:55Z-
dc.date.issued2011-
dc.identifierdoi: 10.1063/1.3658393-
dc.identifierissn: 0003-6951-
dc.identifier.citationApplied Physics Letters 99(18): 182506 (2011)-
dc.identifier.urihttp://hdl.handle.net/10261/75480-
dc.description.abstractThe low temperature magnetic properties of MnP nanocrystals (15-40 nm), both in GaP:MnP epilayers and MnP films, are significantly different compared to bulk and cannot apparently be explained by differences in the structure. A simple model of localized spins is used to describe the magnetic screw structure confined to nanocrystals. The results indicate that the observed magnetic behaviour is related to the nanometric size and to changes in the coupling constants most probably localized at an external grain shell. The nucleation of helical regions at the surface of the ferromagnetic grains is proposed as a possible mechanism for the reversal of the magnetization. © 2011 American Institute of Physics.-
dc.description.sponsorshipWe acknowledge the financial support from the Spanish Ministry MICINN (MAT2009-08786, MAT-2008-06517, and CSD2009-00013), from “Comunidad de Madrid” (No. S2009/MAT-1756), and by the Natural Sciences and Engineering Research Council of Canada (NSERC), the infrastructure support of the RQMP (Québec), and the technical assistance of Joël Bouchard.-
dc.language.isoeng-
dc.publisherAmerican Institute of Physics-
dc.relationS2009/MAT-1756 PHAMA-
dc.rightsopenAccess-
dc.titleConfinement effects on the low temperature magnetic structure of MnP nanocrystals-
dc.typeartículo-
dc.identifier.doi10.1063/1.3658393-
dc.relation.publisherversionhttp://dx.doi.org/10.1063/1.3658393-
dc.date.updated2013-05-03T10:08:55Z-
dc.description.versionPeer Reviewed-
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