Thermodynamic properties and electrical conductivity of a tight-binding hard-sphere model for liquid metals

We have carried out self-consistent Monte–Carlo simulations for a model fluid of monovalent atoms which interact via hard-sphere repulsions and an attraction arising from the free energy of its valence electrons. This attractive energy is derived from a tight-binding model with an electronic hopping which decays exponentially with distance. The liquid–vapor phase diagram and the structural properties are obtained in the present work. Also, we present the results from various theoretical approaches to the electronic conductivity along the liquid–vapor coexistence line. The results are compared with experimental data for cesium.