High-Temperature Measurements of the Electron Hall Mobility in the Alkali Halides
- 15 October 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 2 (8) , 3421-3431
- https://doi.org/10.1103/physrevb.2.3421
Abstract
Using a modification of the Redfield technique, the electronic Hall mobility has been measured over the temperature range from 150 to 400 K in nine alkali halides made photoconducting by either x irradiation or electrolytic coloration. The measurements indicate that in all cases the Hall mobility decreases much more sharply with increasing temperature than wide-band optical-phonon scattering theories would predict. Preliminary consideration of the effects of polaron-band narrowing yield results which agree well with the temperature dependence of the data.Keywords
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