Phase Transition in Simplest Plasma Models

in "Physics of Strongly Coupled Plasmas" /Eds. W. Kraeft and M. Schlanges, (World Scientific, Singapore-London) 1996, pp.145-148 Previous study of properties of the first-order phase transition in a set of plasma mod-els with common feature - absence of individual correlations between charges of opposite sign, was continued. Predicted discontinuities in equilibrium non-uniform charge profiles have been calculated for the case of electron distribution in atomic cell and some other similar situations. These anomalies appear when some simple approximations are used and they may be naturally interpreted in terms of discussed phase transition.