We present a theoretical formula and calculations of the dynamic structure factor of expanded liquid metals on basis of pseudopotential theory and the OCP approximation for degenerate electrons and classic ions. The reasonable agreement with experiment in liquid Rb is shown.
Trigger, S. A., Allahyarov, E. A., & Schram, P. P. J. M. (1995). OCP reference theory of dynamic structure factors of expanded liquid metals. Physica B: Condensed Matter, 212(1), 97-100. https://doi.org/10.1016/0921-4526(95)00011-W