Density of states and critical behavior of the Coulomb glass.
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.
Surer
Brigitte
B
Theoretische Physik, ETH Zurich, CH-8093 Zurich, Switzerland.
Katzgraber
Helmut G
HG
Zimanyi
Gergely T
GT
Allgood
Brandon A
BA
Blatter
Gianni
G