Anderson localization due to random magnetic field in two dimensions
arXiv:cond-mat/9808059 · doi:10.1103/PhysRevLett.82.604
Abstract
Results of large-scale numerical simulations are reported on the Anderson localization in a two-dimensional square lattice tight-binding model with random flux. Localization lengths, fluctuations of the conductance, and the density of states are computed for quasi-one-dimensional geometry. Numerical results indicate that the model exhibits the same critical behavior as the one studied by Gade and Wegner. It is argued that all the states except a zero-energy state are localized and the density of states has a singularity in the center of the band. The energy scale below which the density of states increases is found to be extremely small.
4 pages, 5 figures, extensive revision made, but no change in conclusion
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