Critical behavior of the Hall conductivity at the metal-insulator transition
- 29 July 1985
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 55 (5), 522-524
- https://doi.org/10.1103/physrevlett.55.522
Abstract
We measure the low-temperature longitudinal and Hall conductivities in a series of Ge:Sb samples at the approach to the metal-insulator transition. Both conductivities critically vanish with the same exponent of 1, in contradiction to the ratio of 2 predicted by the scaling theory of localization.Keywords
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