Some lattice dynamical properties of lead on a pseudopotential approach

Abstract

A new model potential

is adopted to represent the effective electron-ion interaction in metals. An application is made in the case of lead. A calculation has been carried out to obtain the form factor, binding energy and the monovacancy resistivity. It is also applied to evaluate some liquid state properties, namely, resistivity, temperature coefficient of resistivity at constant volume and the thermoelectric power. The temperature dependence of the Knight shift at constant volume is also examined in solid and liquid phases. In all these calculations the dielectric function is introduced on two methods, in random phase approximation and on Sham's theory. The two sets of theoretical results are not significantly different and present a tolerable agreement with the experimental data.