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Comment on "Nonzero Fermi Level Density of States for a Disordered d-wave superconductor in 2D" by Ziegler et al. PRL 77, 3013 (1996)

A. A. Nersesyan·A. M. Tsvelik
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Abstract

In their paper Ziegler et al. claim that the model of 2D Dirac fermions in a random gauge potential has a finite density of states at zero energy. We point out that the approach used in this paper fails to reproduce the perturbation theory results for this problem.

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A. A. Nersesyan, A. M. Tsvelik. 1997-01-25. Comment on "Nonzero Fermi Level Density of States for a Disordered d-wave superconductor in 2D" by Ziegler et al. PRL 77, 3013 (1996). https://doi.org/10.1103/physrevlett.78.3981

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