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Perturbative Evidence of Non-Universality in the Quantized Hall Conductivity of a Disordered Relativistic 2D Electron Gas

N. Bralic·C. A. A. de Carvalho·R. M. Cavalcanti·P. Donatis
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Abstract

We study a relativistic two-dimensional electron gas in the presence of a uniform external magnetic field and a random static scalar potential. We compute, in first order perturbation theory, the averages of the charge density and of the transverse conductivity for a white-noise potential, and show that, within this treatment, their quantized values are modified by the disorder.

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N. Bralic, C. A. A. de Carvalho, R. M. Cavalcanti, P. Donatis. 1998-04-22. Perturbative Evidence of Non-Universality in the Quantized Hall Conductivity of a Disordered Relativistic 2D Electron Gas. https://doi.org/10.1142/s0217984998000408

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