| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
|
|
|---|---|---|
| Page(s) | C6-755 - C6-757 | |
| DOI | https://doi.org/10.1051/jphyscol:19816222 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-755-C6-757
DOI: 10.1051/jphyscol:19816222
1 Israel Atomic Energy Commission, Soreq
2 Nuclear Research Center, Yavne, Israel
J. Phys. Colloques 42 (1981) C6-755-C6-757
DOI: 10.1051/jphyscol:19816222
DYNAMICS IN DISPLACIVE PHASE TRANSITIONS
R. Englman1, 21 Israel Atomic Energy Commission, Soreq
2 Nuclear Research Center, Yavne, Israel
Abstract
First passage rates of an interacting, anharmonic system of phonons (some of which are unstable, soft) are calculated as function of temperature. The classical equations of motion are amended by a nonlocal term representing tunnelling.