A generalized mean-field analysis has been performed to study the ordering process in a half-filled square lattice-gas model with repulsive nearest-neighbor interaction under the influence of a uniform electric field. We have determined the configuration probabilities on two-, four-, five-, and six-point clusters, excluding the possibility of sublattice ordering. The agreement between the results of six-point approximations and Monte Carlo simulations confirms the absence of phase transition for sufficiently strong fields.
|Number of pages||4|
|Journal||Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics|
|Publication status||Published - Jan 1 1996|
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Statistics and Probability
- Condensed Matter Physics