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Ising models with anisotropic interactions: Stationary nonequilibrium states with a nonuniform temperature profile

1987; Elsevier BV; Volume: 144; Issue: 2-3 Linguagem: Inglês

10.1016/0378-4371(87)90210-x

1873-2119

Pedro L. Garrido, Joaquín Marro,

Stochastic processes and statistical mechanics

We study a two-dimensional Ising model with different interaction strengths along each principal axis and a nonuniform temperature profile along one of them, as well as some variations of it. The model is solved analytically and/or numerically on different assumptions to reveal a variety of (nonequilibrium) stationary states and phase transitions; we also investigate the system relaxation in some typical cases.