A LOCAL PSEUDOPOTENTIAL IN THE THEORY OF LIQUID-METALS

A local pseudopotential for electron-ion interaction in liquid metals is proposed which contains single parameter. The pseudopotential param eter was estimated by fitting it with the wave vector, q = q0, where t he form factor passes through first zero. We have calculated the form factors of the pseudopotential using different forms of the dielectric functions. These form factors have been used to compute electrical re sistivity and thermoelectric power of several monovalent, divalent and polyvalent liquid metals. A reasonably good agreement with the availa ble theoretical and experimental data is obtained which justifies the formulation.