Abstract
Abstract We have used our recently proposed single parametric pseudopotential to study certain physical properties such as binding energy, equation of state, ion–ion interaction, phonon dispersion curves ( q -space and r -space analysis), mode Gruneisen parameters and dynamical elastic constants of some fcc metals (La, Yb, Ce and Th). The contribution of the s-like electrons is calculated in the second order perturbation theory for the potential while the contribution of d- and f-shell electron is taken into account by the introduction of repulsive short-range Born–Mayer term. The parameter of the potential is determined by zero pressure condition. An excellent agreement between theoretical investigations and experimental findings is achieved which confirm the ability of our model pseudopotential.
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