Inelastic x-ray scattering by liquid lithium near the melting point

Abstract

The dynamic structure factor, , and the static structure factor, S(Q), of liquid lithium were investigated by means of inelastic x-ray scattering and small-angle x-ray scattering. Comparing our results to different molecular dynamics simulations we found a good agreement with MD simulations using an ab initio pair potential derived from the neutral pseudoatom method. However, measurements of the absolute cross section indicate that, in addition to coherent scattering, there is an incoherent scattering contribution for energy transfers of several meV.