Lattice dynamics of cobalt

Abstract

The effective interaction within the metal consists of radial, tangential and electronic contributions. The electron gas screens out the individual ion. The screened Coulomb potential between the ions is used to account for the electronic contribution. The phonon dispersion relations and (θ-T)-curves for cobalt have been plotted and compared with available experimental results on the specific heat. © 1974 Società Italiana di Fisica.