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arXiv · 0805.4640

Density of States and Critical Behavior of the Coulomb Glass

Brigitte Surer·Helmut G. Katzgraber·Gergely T. Zimanyi·Brandon A. Allgood·Gianni Blatter
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Abstract

We present zero-temperature simulations for the single-particle density of states of the Coulomb glass. Our results in three dimensions are consistent with the Efros and Shklovskii prediction for the density of states. Finite-temperature Monte Carlo simulations show no sign of a thermodynamic glass transition down to low temperatures, in disagreement with mean-field theory. Furthermore, the random-displacement formulation of the model undergoes a transition into a distorted Wigner crystal for a surprisingly broad range of the disorder strength.

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Brigitte Surer, Helmut G. Katzgraber, Gergely T. Zimanyi, Brandon A. Allgood, Gianni Blatter. 2009-02-12. Density of States and Critical Behavior of the Coulomb Glass. https://doi.org/10.1103/physrevlett.102.067205

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