Generic singularities in a driven diffusive system

An Ising model in the lattice gas representation is driven far from equilibrium by an external “electric” field into a steady state. Apart from displaying a new class of singularities associated with the second order phase transition, multi-particle correlations are singular for all temperatures above criticality. Further, for all T below Tc, there are anomalies in interfacial properties, which may explain the suppression of roughness. Being consequences of the violation of the fluctuation-dissipation theorem these generic features are studied analytically and by simulations.