| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
|
|
|---|---|---|
| Page(s) | C6-175 - C6-177 | |
| DOI | https://doi.org/10.1051/jphyscol:1981651 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-175-C6-177
DOI: 10.1051/jphyscol:1981651
Department of Theoretical Physics, Oxford University, Oxford, U.K.
J. Phys. Colloques 42 (1981) C6-175-C6-177
DOI: 10.1051/jphyscol:1981651
VIBRATIONS AND DIFFUSION OF ATOMS IN SUPERIONIC CRYSTALS AND MELTS
R.J. Elliott et M. DixonDepartment of Theoretical Physics, Oxford University, Oxford, U.K.
Abstract
Recent computer simulation studies contain sufficient information about the atomic disorder and motion to allow a calculation of the dynamical response of superionic crystals and melts which may be compared with measurements of inelastic neutron scattering and Raman scattering. The high frequency part of this response is essentially that of anharmonic vibrations in a disorderd lattice. The low frequency part results from correlated jump diffision of the atoms.