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1994

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/18828

Monte Carlo study of a kinetic lattice model with random diffusion of disorder

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Abstract

We report Monte Carlo results for a nonequilibrium Ising-like model in two and three dimensions. Nearest-neighbor interactions J change sign randomly with time due to competing kinetics. There follows a fast and random, i.e., spin-configuration-independent diffusion of Js, of the kind that takes place in dilute metallic alloys when magnetic ions diffuse. The system exhibits steady states of the ferromagnetic (antiferromagnetic) type when the probability p that J>0 is large (small) enough. No counterpart to the freezing phenomena found in quenched spin glasses occurs. We compare our results with existing mean-field and exact ones, and obtain information about critical behavior.

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http://dx.doi.org/10.1103/PhysRevE.49.2041

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Física estadística, Termodinàmica, Sistemes no lineals, Equacions d'estat, Regla de les fases i equilibri, Transformacions de fase (Física estadística)

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Statistical physics, Thermodynamics, Nonlinear systems, Equations of state, Phase rule and equilibrium, Phase transformations (Statistical physics)

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Articles publicats en revistes (Física de la Matèria Condensada)

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GONZÁLEZ-MIRANDA, J. M. (Jesús Manuel), et al. Monte Carlo study of a kinetic lattice model with random diffusion of disorder. Physical Review E. 1994. Vol. 49, num. 3, pags. 2041-2048. ISSN 1063-651X. [consulted: 7 of October of 2026]. Available at: https://hdl.handle.net/2445/18828

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