Abstract
AbstractThe thermal properties of the simple fcc metals Cu and Ag are investigated within a self‐consistent statistical approach. The method is based on a variation procedure calculating a parameter of the quasi‐elastic bond of neighboring atoms. The effective interionic interaction is approximated by the Morse pair potential fitting the experimental values for the lattice constant and the bulk modulus. The electronic contribution to the free energy is estimated within the free‐electron approximation. For both Cu and Ag we compute the temperature dependence of the interatomic distance, the specific heat at constant pressure, and the bulk modulus, and the equation of state at 293 K. Good agreement with experimental data is observed. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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