Study of collective motion in liquid alkali metals

[摘要] Study of collective motion in the liquid alkali metals is provided through the current article. Phonon dispersion curves for liquid alkali metals are presented using a second order approach in conjunction with the Hubbard–Beeby (HB)equation. Both longitudinal and transverse components of the collective motion are obtained through the present model. A classical approximation approach of the pseudopotential is used to describe the core interaction of the electronic configuration. Screening as well as exchange and correlation effect are determined by local field correction functions given by Hartree (H), Ichimaru–Utsumi (IU) and Sarkar et al. (S). Related parameters and constants are reported in line with the current computation to make the study comprehensive.

[学科分类] 材料工程

[关键词] Hubbard–Beeby approach;liquid alkali metals;phonon dispersion curves.