Ghatak, K. P. ; Nag, B. (1998) A simple theoretical analysis of the Einstein relation in ultrathin films of bismuth under quantizing magnetic field Journal of Physics and Chemistry of Solids, 59 (3). pp. 411-415. ISSN 0022-3697
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00223...
Related URL: http://dx.doi.org/10.1016/S0022-3697(97)00196-0
Abstract
The Einstein relation for the diffusivity-mobility ratio is studied in ultrathin films of Bi under magnetic quantization in accordance with McClure-Choi, Cohen, Arbikosov, Lax and parabolic ellipsoidal band models in the presence of spin, broadening and temperature, respectively. It appears that the same ratio increases with increasing electron concentration and decreasing film thickness in various manners. The McClure and Choi model shows this more significantly than the other models. We have also suggested an experimental method of determining the Einstein relation in degenerate materials having arbitrary dispersion laws.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 28662 |
| Deposited On: | 15 Dec 2010 11:46 |
| Last Modified: | 08 Jun 2011 06:53 |
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