SELF-ORGANIZING DOMAIN-STRUCTURE IN A DRIVEN LATTICE-GAS

Using Monte Carlo simulations, we have studied the self-organizing pol ydomain structure appearing at low temperatures in a square lattice-ga s model with a repulsive nearest-neighbor interaction when the particl e jumps are biased by a uniform electric field. These investigations c onfirm that the enhanced interfacial material transport is able to pre serve the anisotropic self-organizing domain structure and to destroy the monodomain state via a nucleation mechanism. In the self-organizin g state the size distribution of domains shows a power-law behavior.