Distribution of barriers in(KBr)1x(KCN)x: Dielectric response and specific heat

Abstract
We present data on the dielectric response of (KBr)1x(KCN)x for x=0.25, 0.5, and 0.7. Interpreting the data using a theory for the glassy dynamics of this system, we calculate a low-temperature specific heat. This calculated specific heat has the same magnitude, time dependence, and composition dependence as seen in experiments.