A molecular dynamics study of liquid sodium at 373K

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Abstract
Molecular dynamics calculations for liquid sodium at 373K are reported. Five different potential functions computed from a local pseudopotential and a variety of dielectric functions have been considered. Results for the specific heat at constant volume, the radial distribution function, the mean-square displacement and the spectral density of the velocity autocorrelation function are given and discussed. The potential functions computed from the pseudopotential of Ashcroft and the dielectric function of Geldart and Vosko are found to give properties that fit very closely to the available experimental results.