### Abstract

A two-dimensional half-filled lattice gas model with nearest-neighbour attractive interaction is studied where particles may be coupled to two thermal baths at different temperatures T_{1} and T_{2}. The hopping of particles is governed by the heat bath at temperature T_{1} with probability p and the other heat bath at temperature T_{2} with probability 1-p independently of the hopping direction, In spite of the spatial isotropic dynamics, the stability of interface depends on its orientation: the vertical and horizontal interfaces become unstable and interfaces are stable in the diagonal directions. As a consequence, particles condense into a rifled square in the novel ordered state. The resulting non-equilibrium stationary state is studied as a function of competing parameter p and temperatures T_{1} and T_{2} by Monte Carlo simulation and analytical approximations as well.

Original language | English |
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Number of pages | 1 |

Journal | Computer Physics Communications |

Volume | 121 |

Publication status | Published - Jan 1 1999 |

Event | Proceedings of the 1998 Europhysics Conference on Computational Physics (CCP 1998) - Granada, Spain Duration: Sep 2 1998 → Sep 5 1998 |

### ASJC Scopus subject areas

- Hardware and Architecture
- Physics and Astronomy(all)