| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
|
|
|---|---|---|
| Page(s) | C6-187 - C6-189 | |
| DOI | https://doi.org/10.1051/jphyscol:1981655 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-187-C6-189
DOI: 10.1051/jphyscol:1981655
1 School of Materials Science, University of Bath, Bath, BA2 7AY, United Kingdom
2 Department of Chemistry, University of Aberdeen, Aberdeen, AB9 2UE, United Kingdom
J. Phys. Colloques 42 (1981) C6-187-C6-189
DOI: 10.1051/jphyscol:1981655
A NEW INTERPRETATION OF ULTRASONIC ATTENUATION IN SUPERIONIC CONDUCTORS β AND β''-ALUMINA
D.P. Almond1 et A.R. West21 School of Materials Science, University of Bath, Bath, BA2 7AY, United Kingdom
2 Department of Chemistry, University of Aberdeen, Aberdeen, AB9 2UE, United Kingdom
Abstract
Broad asymmetrical attenuation peaks have been found in the ionic conductors β and β''-alumina which cannot be explained by Debye theory. They are interpreted as being a consequence of non-exponential decay processes and are analysed using universal dielectric response theory. Additional effects associated with water contamination of the samples are discussed.