Lattice dynamics of HCP metals in real space

The rare earth metal pair potential (REMPP) defined by us is used to calculate the phonon dispersion curves and elastic constants of the transition metals and the rare earths in the HCP phase. In this method there is no need of calculating the Coulomb contribution to phonon frequencies separately. The agreement between the calculated and the experimental values of the phonon frequencies is found to be as good as obtained by other authors in the past using different methods. The elastic constants of these metals are also calculated and compared with available experimental results. ((orig.))