| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
|
|
|---|---|---|
| Page(s) | C6-884 - C6-886 | |
| DOI | https://doi.org/10.1051/jphyscol:19816262 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-884-C6-886
DOI: 10.1051/jphyscol:19816262
1 University of Metz, 57045 Metz, France
2 Max-Planck-Institut für Festkörperforschung, 7000 Stuttgart, F.R.G.
J. Phys. Colloques 42 (1981) C6-884-C6-886
DOI: 10.1051/jphyscol:19816262
LATTICE DYNAMICS OF CUPRITE (Cu2O)
G.E. Kugel1, C. Carabatos1 et W. Kress21 University of Metz, 57045 Metz, France
2 Max-Planck-Institut für Festkörperforschung, 7000 Stuttgart, F.R.G.
Abstract
The phonon dispersion curves of Cu2O have been calculated using a shell model which takes into account nearest neighbour O-Cu, Cu-Cu and O-O interactions, long range Coulomb interactions and the electronic polarizability of both the oxygen and the copper ions. The results are compared with the data obtained from ultrasound, infrared, Raman and inelastic neutron scattering measurements. The interrelations between fcc-Cu and Cu2O are pointed out and the influence of deformations of the electronic charge density on the phonon dispersion curves is discussed.