Asymptotic density of states for a disordered 2D electron system in a strong magnetic field
- 30 August 1987
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 20 (24) , L577-L581
- https://doi.org/10.1088/0022-3719/20/24/001
Abstract
The tails of the density of states for the lowest Landau level of a disordered two-dimensional electron system are exactly calculated with an instanton method. The probability distribution of the random potential is taken to be Gaussian with arbitrary correlation. Except for a renormalisation of the energy scale, the result is the same as that found for a white noise correlation.Keywords
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