Microwave and infrared conductivity of Na-alumina; evidence for collective ionic effects
- 15 April 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 13 (8) , 3329-3332
- https://doi.org/10.1103/physrevb.13.3329
Abstract
Detailed measurements of the ionic conductivity in single-crystal Na -alumina are reported for frequencies between and Hz and for temperatures between 4.2 and 300 K. The quadratic temperature dependence of the conductivity at Hz and the large width (∼ 23 ) of the 65- phonon mode are consistent with a model in which there is a broad distribution of collective ion modes.
Keywords
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