Monte Carlo study of the structure of expanded fluid rubidium

The liquid structure factors for four high-temperature states of fluid rubidium are constructed using the Monte Carlo method and the effective pair potential developed by Price (1971). The calculations are compared with the measured structure factors of Block et al. (1977 Liquid Metals 1976 Inst. Phys. Conf. Ser., no.30, p.126) and are found to differ significantly in the vicinity of the principal maximum. The prescription used to construct this pair potential does not appear to provide the necessary density dependence. Some details of procedures used to construct the structure factors are included in the discussion.