Microphase and macrophase separations in discrete potential fluids


 In this paper, we studied the liquid-vapor phase diagram and structural properties of discrete potential fluids using Gibbs ensemble simulations integral equations theory. For this, considered three fluids, namely, square well, well-barrier, well-barrier-well. They represent simple models for with competing interactions that exhibit a rich microscopic macroscopic behavior depending on both strength range attractions repulsions in potential. Here, emphasized near liquid- vapor coexistence. well-barrier fluid, observed possible scenario separation associated cluster-like formation critical region, which could be interpreted as frustration mechanism transition when either or repulsion increases. This microscopic- like can inhibited by suppressing adding an extra well to interaction However, fluid long-range potential, found evidence aggregation driven solely attractions.