| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
|
|
|---|---|---|
| Page(s) | C6-178 - C6-180 | |
| DOI | https://doi.org/10.1051/jphyscol:1981652 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-178-C6-180
DOI: 10.1051/jphyscol:1981652
1 Brown Boveri Research Center, CH-5405 Baden, Switzerland
2 Institut für Reaktortechnik ETHZ, CH-5303 Würenlingen, Switzerland
J. Phys. Colloques 42 (1981) C6-178-C6-180
DOI: 10.1051/jphyscol:1981652
PHONONS AND IONIC CONDUCTIVITY IN THE TWO-DIMENSIONAL SUPERIONIC CONDUCTOR AgCrS2
P. Brüesch1, T. Hibma1 et W. Bührer21 Brown Boveri Research Center, CH-5405 Baden, Switzerland
2 Institut für Reaktortechnik ETHZ, CH-5303 Würenlingen, Switzerland
Abstract
Far-infrared technique, coherent and incoherent neutron scattering have been used to study the lattice dynamics of AgCrS2 at different temperatures. The low frequency TO mode shows a pronounced softening between 10 K and 700 K. The data are analyzed with a rigid-ion model and it is shown that the pattern of eigenvectors of the low energy modes (ν < 45cm-1) give basic information for the diffusion process of the Ag ions.