Multicritical Behavior in a Random-Field Ising Model under a Continuous-Field Probability Distribution

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dc.creatorSalmon, Octavio R.
dc.creatorCrokidakis, Nuno
dc.creatorNobre, Fernando D.
dc.date2008-12-13
dc.date.accessioned2026-07-07T12:30:30Z
dc.date.available2026-07-07T12:30:30Z
dc.descriptionA random-field Ising model that is capable of exhibiting a rich variety of multicritical phenomena, as well as a smearing of such behavior, is investigated. The model consists of an infinite-range-interaction Ising ferromagnet in the presence of a triple-Gaussian random magnetic field, which is defined as a superposition of three Gaussian distributions with the same width $σ$, centered at H=0 and $H=\pm H_{0}$, with probabilities $p$ and $(1-p)/2$, respectively. Such a distribution is very general and recovers as limiting cases, the trimodal, bimodal, and Gaussian probability distributions.
dc.description25 pages, 21 figures, article
dc.identifierhttps://arxiv.org/abs/0812.2585
dc.identifierhttp://arxiv.org/abs/0812.2585
dc.identifierJ. Phys.: Condens. Matter 21 (2009), 056005
dc.identifierdoi:10.1088/0953-8984/21/5/056005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216149
dc.subjectStatistical Mechanics
dc.subjectDisordered Systems and Neural Networks
dc.titleMulticritical Behavior in a Random-Field Ising Model under a Continuous-Field Probability Distribution
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