Stretched exponential relaxation in the Coulomb glass
/ Authors
/ Abstract
Abstract:The relaxation of the specific heat and the entropy to their equilibrium values is investigated numerically for the three-dimensional Coulomb glass at very low temperatures. The long time relaxation follows a stretched exponential function, f (t) = f0exp - (t/τ)β, with the exponent β increasing with the temperature. The relaxation time diverges as an Arrhenius law when T→ 0.
Journal: The European Physical Journal B - Condensed Matter and Complex Systems