| Autor: |
Boris I Shklovskii, D. G. Polyakov |
| Rok vydání: |
1994 |
| Předmět: |
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| Zdroj: |
Physical Review Letters. 73:1150-1153 |
| ISSN: |
0031-9007 |
| DOI: |
10.1103/physrevlett.73.1150 |
| Popis: |
Activated dissipative conductivity ¢==o-*~exp(-A/T) and the activated deviation of the Hall conductivity from the precise quanfizafion &r~v=~--ie2/hf~e xp(--A/T) are studied in a plateau range of the quantum Hall effect. The prefactors cr*~ and o*~ are calculated for the case of a long-range random potential in the fxa~ework of a classical theory. There is a range of temperatures Tx > T2. on the other hand, a~ = e2/h and ~ = (ea/h)(Ta/T) I°/ts << a~,. Similar results are valid for a fractional plateau near the lining factor p/q if charge e is replaced by e/q. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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