A comparative study on atomic transport properties of liquid less-simple metals

Abstract

We have studied the atomic transport properties of liquid less-simple metals namely Bi, Cd, Pb, Sb, Sn and Tl using universal scaling laws and hard sphere (HS) theories of liquid. Effective interionic interaction in metals has been derived from both Brettonet–Silbert (BS) and Ashcroft’s empty core pseudopotential models. For structure calculation, variational modified hypernetted chain integral equation theory has been considered. Excess entropy and effective HS diameter are the basic ingredients of the study. Obtained ingredients are found to be close with experimental data than any other available literature values when BS model has been chosen. Comparing with experimental data, obtained results for transport coefficients suggest that Faber’s HS theory is excellent for diffusion coefficient and is reasonably good for viscosity coefficient along with BS pseudopotential than any other combinations employed in this study. The probable reason may be the hybridization of s and d electrons exists in the concerned systems.