Glassy relaxation at surfaces: The correlation length of cooperative motion in the facilitated kinetic Ising model

Publisher Website
Google Scholar
Abstract
A measure of cooperativity in glassy liquids is defined in terms of the kinetic correlation length of relaxation at a surface. This length and its temperature dependence is measured for the facilitated kinetic Ising model with both free and pinned surfaces. A simple power law is found to describe the relationship between the kinetic correlation length and the bulk relaxation time over four decades of data.