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dc.contributor.authorIglesias, José Roberto
dc.contributor.authorEspeso Martínez, José Ignacio 
dc.contributor.authorMarcano Aguado, Noelia
dc.contributor.authorGómez Sal, J. C. 
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2012-03-23T17:39:46Z
dc.date.available2012-03-23T17:39:46Z
dc.date.issued2009-05-27
dc.identifier.issn1098-0121
dc.identifier.urihttp://hdl.handle.net/10902/508
dc.description.abstractSome cerium compounds exhibit hysteresis cycles with sharp macroscopic jumps in the magnetization at very low temperatures. This effect is attributed to the formation of clusters in which the anisotropy competes with the applied magnetic field. Here, we present a simple model where a lattice of ferromagnetically coupled spins is separated in clusters of random sizes and with random anisotropy. Within this model, we obtain hysteresis cycles presenting jumps that behave in a similar way as the experimental ones and that disappear when increasing the temperature. The results are in good agreement with the hysteresis cycles measured at very low temperatures in CeNi1−xCux, and the comparison with these experimental results allows to discriminate the relative importance of the mechanisms driving the thermal evolution of the cycles.es_ES
dc.format.extent6 p.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Physical Societyes_ES
dc.rights© The American Physical Societyes_ES
dc.sourcePhysical Review. B, Condensed Matter and Materials Physics, vol.79, article number 195128, 2009es_ES
dc.subject.otherSCESes_ES
dc.subject.otherMagnetizationes_ES
dc.subject.otherRandom anisotropyes_ES
dc.subject.otherKondo effectes_ES
dc.subject.otherCluster-glasses_ES
dc.titleCluster model with random anisotropy for hysteresis jumps in CeNi1-xCux alloyses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttp://dx.doi.org/10.1103/PhysRevB.79.195128
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1103/PhysRevB.79.195128
dc.type.versionpublishedVersiones_ES


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