J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981International Conference on Phonon Physics
|Page(s)||C6-87 - C6-89|
J. Phys. Colloques 42 (1981) C6-87-C6-89
COHERENT POTENTIAL APPROXIMATION AND STRONGLY ANHARMONIC SYSTEMS : CRYSTALS OF PARA-HYDROGEN AND NEON RESP. HYDROGEN ATOMSK. Menn et W. Biem
Institute of Theoretical Physics, University of Giessen, D-6300 Giessen, F.R.G.
For mixtures of p-hydrogen and neon in the solid state phonon calculations have been performed by combining the CPA and the self consistent phonon approximation (SCP) to include the strong anharmonicity of the system. The structure changes and the phonon spectrum have been calculated as function of the concentration. The method has also been applied to mixtures of p-H2 and hydrogen atoms.