Weak first-order transition in the three-dimensional site-diluted Ising antiferromagnet in a magnetic field

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dc.contributor.authorMaiorano, A.
dc.contributor.authorMartín Mayor, Víctor
dc.contributor.authorRuiz Lorenzo, J. J.
dc.contributor.authorTarancón, A.
dc.date.accessioned2023-06-20T12:40:00Z
dc.date.available2023-06-20T12:40:00Z
dc.date.issued2007-08-31
dc.description© 2007 American Physical Society. This work has been partially supported by MEC Contracts Nos. BFM2003-08532, FISES2004-01399, FIS2004- 05073, and FIS2006-08533, by the European Commission Contract No. HPRN-CT-2002-00307, and by UCM-BCSH. We are grateful to T. Jörg and L. A. Fernández for interesting discussions.
dc.description.abstractWe perform intensive numerical simulations of the three-dimensional site-diluted Ising antiferromagnet in a magnetic field at high values of the external applied field. Even if data for small lattice sizes are compatible with second-order criticality, the critical behavior of the system shows a crossover from second-order to first-order behavior for large system sizes, where signals of latent heat appear. We propose “apparent” critical exponents for the dependence of some observables on the lattice size for a generic disordered first-order phase transition.
dc.description.departmentDepto. de Física Teórica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMEC, Spain
dc.description.sponsorshipEuropean Commission
dc.description.sponsorshipUCM-BCSH
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/45420
dc.identifier.doi10.1103/PhysRevB.76.064435
dc.identifier.issn1098-0121
dc.identifier.officialurlhttp://dx.doi.org/10.1103/PhysRevB.76.064435
dc.identifier.relatedurlhttps://journals.aps.org
dc.identifier.urihttps://hdl.handle.net/20.500.14352/52131
dc.issue.number6
dc.journal.titlePhysical review B
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.projectIDBFM2003-08532
dc.relation.projectIDFISES2004-01399
dc.relation.projectIDFIS2004- 05073
dc.relation.projectIDFIS2006-08533
dc.relation.projectIDHPRN-CT-2002-00307
dc.rights.accessRightsopen access
dc.subject.cdu53
dc.subject.keywordCritical-behavior
dc.subject.keyword3 dimensions
dc.subject.keywordMonte-Carlo
dc.subject.keywordPhase-transitions
dc.subject.keywordRandom-systems
dc.subject.keywordModel
dc.subject.keywordUniversality.
dc.subject.ucmFísica-Modelos matemáticos
dc.titleWeak first-order transition in the three-dimensional site-diluted Ising antiferromagnet in a magnetic field
dc.typejournal article
dc.volume.number76
dspace.entity.typePublication
relation.isAuthorOfPublication061118c0-eadf-4ee3-8897-2c9b65a6df66
relation.isAuthorOfPublication.latestForDiscovery061118c0-eadf-4ee3-8897-2c9b65a6df66

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