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dc.contributor.authorAlonso, Juan J.
dc.date.accessioned2016-09-02T10:36:49Z
dc.date.available2016-09-02T10:36:49Z
dc.date.created2016-09-02
dc.date.issued2016-09-02
dc.identifier.urihttp://hdl.handle.net/10630/11938
dc.description.abstractBy Monte Carlo simulations, we study the character of the spinglass (SG) phase in dense disordered packings of magnetic nanoparticles (NPs). We focus on NPs which have large uniaxial anisotropies and can be well represented as Ising dipoles. Dipoles are placed on SC lattices and point along randomly oriented axes. From the behaviour of a SG correlation length we determine the transition temperature Tc between the paramagnetic and a SG phase. For temperatures well below Tc we find distributions of the SG overlap parameter q that are strongly sample-dependent and exhibit several spikes. We find that the average width of spikes, and the fraction of samples with spikes higher than a certain threshold does not vary appreciably with the system sizes studied. We compare these results with the ones found previously for 3D site-diluted systems of parallel Ising dipoles and with the behaviour of the Sherrington-Kirkpatrick model.es_ES
dc.description.sponsorshipWe thank financial support from MINECO FIS2013-43201-P Grantes_ES
dc.language.isospaes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectVidrios de espínes_ES
dc.subject.otherspin-glass dipoles magnetismes_ES
dc.titleNature of the spin-glass phase in dense packings of Ising dipoles with random anisotropy axeses_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.centroFacultad de Cienciases_ES
dc.relation.eventtitle8th Joint European Magnetic Symposia JEMS16es_ES
dc.relation.eventplaceGlasgowes_ES
dc.relation.eventdate21-26 Agosto 2016es_ES
dc.cclicensebyes_ES


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