Benavides, Ana Laura; Guevara, Yolanda; Del Río, Fernando - In: Physica A: Statistical Mechanics and its Applications 202 (1994) 3, pp. 420-437
A simple polar fluid is modelled by square-well particles with point dipoles and quadrupoles at their centers. An equation for the free energy is derived by perturbation theory, obtaining the explicit dependence on the potential parameters, and allowing to study the effects of the strength of...