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Title: Monte Carlo study of a kinetic lattice model with random diffusion of disorder
Author: González-Miranda, J. M. (Jesús Manuel)
Labarta, Amílcar
Puma, Marcello
Fernández, J. F.
Garrido, Pedro L.
Marro, Joaquín, 1945-
Keywords: Física estadística
Sistemes no lineals
Equacions d'estat
Regla de les fases i equilibri
Transformacions de fase (Física estadística)
Statistical physics
Nonlinear systems
Equations of state
Phase rule and equilibrium
Phase transformations (Statistical physics)
Issue Date: 1994
Publisher: The American Physical Society
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.
Note: Reproducció del document publicat a:
It is part of: Physical Review E, 1994, vol. 49, núm. 3, p. 2041-2048
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ISSN: 1063-651X
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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