Phase transitions in stationary nonequilibrium states of model lattice systems
- 1 August 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 28 (3), 1655-1658
- https://doi.org/10.1103/physrevb.28.1655
Abstract
We investigated the stationary nonequilibrium states of a lattice gas of interacting particles subject to an external field . The dynamics of the system are given by hoppings of particles to nearby empty sites with rates biased for jumps in the direction of . This system is often used to model fast ionic conductors. Using computer simulations of a two-dimensional lattice with nearest-neighbor interactions we studied the dependence of the structure function, current, etc., on temperature and . We found evidence for a transition line in the temperature-field plane at which the system develops (anisotropic) long-range order. enhances the transition for attractive interactions and represses it for repulsive ones.
Keywords
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