Relaxation behavior in a tiling model for glasses.

As a liquid is supercooled past its freezing point and eventually through a glass transition point, the constituent molecules experience increasing difficulty in undergoing the collective rearrangements necessary to lower the total interaction energy. This inherent sluggishness in glass- formers manifests many observable symptoms which include cooling-rate dependence of thermodynamic properties, and non-exponential relaxation behavior of mechanical and electrical properties.