Antilocalization in a 2D Electron Gas in a Random Magnetic Field
Preprint
- 25 January 2000
Abstract
We construct a supersymmetric field theory for the problem of a two-dimensional electron gas in a random, static magnetic field. We find a new term in the free energy, additional to those present in the conventional unitary sigma-model, whose presence relies on the long-range nature of the disorder correlations. Under a perturbative renormalization group analysis of the free energy, the new term contributes to the scaling function at one-loop order and leads to antilocalization.Keywords
All Related Versions
- Version 1, 2000-01-25, ArXiv
- Published version: Physical Review Letters, 85 (5), 1060.
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