Abstract

Basic vibrational characteristics of fcc solid inert gases (including the quantum Ne crystal) and some fcc metals (Ag,Cu,Pb,Pd) can be described to a fairly high degree of accuracy in the framework of a model taking into account only the interaction of the nearest neighbors. In this case the force constants can be calculated unambiguously from the known components of the elastic constant tensor ciklm and the lattice constant a.

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