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dc.contributor.authorVives i Santa-Eulàlia, Eduardcat
dc.contributor.authorRosinberg, Martin-Luccat
dc.contributor.authorTarjus, Gillescat
dc.description.abstractWe study the nonequilibrium behavior of the three-dimensional Gaussian random-field Ising model at T=0 in the presence of a uniform external field using a two-spin-flip dynamics. The deterministic, history-dependent evolution of the system is compared with the one obtained with the standard one-spin-flip dynamics used in previous studies of the model. The change in the dynamics yields a significant suppression of coercivity, but the distribution of avalanches (in number and size) stays remarkably similar, except for the largest ones that are responsible for the jump in the saturation magnetization curve at low disorder in the thermodynamic limit. By performing a finite-size scaling study, we find strong evidence that the change in the dynamics does not modify the universality class of the disorder-induced phase transition.eng
dc.publisherThe American Physical Societyeng
dc.relation.isformatofReproducció digital del document publicat en format paper, proporcionada per PROLA i
dc.relation.ispartofPhysical Review B, 2005, vol. 71, núm. 13, p. 134424-1-134424-8eng
dc.rights(c) The American Physical Society, 2005eng
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)-
dc.subject.classificationFenòmens crítics (Física)cat
dc.subject.classificationModel d'Isingcat
dc.subject.otherCritical phenomena (Physics)eng
dc.subject.otherIsing modeleng
dc.titleHysteresis and avalanches in the T=0 random field ising model with 2-spin flip dynamicseng
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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