Steady-state properties of a finite system driven by a chemical-potential gradient

Abstract

A two-dimensional lattice-gas model with repulsive interactions periodically infinite in one dimension and finite in the other is driven into a mass-transporting steady state by asymmetric chemical potentials applied at the open edges. By computer-simulation techniques the steady-state current, the mass profile, and the order-parameter profile are calculated. The driven system is found to display a nonequilibrium phase behavior controlled by the mass flux.