title: Retardation and flow at the glass transition.
abstract: The crossover from back-and-forth jumps between structural minima to the no-return jumps of the viscous flow is modeled in terms of an ensemble of double-well potentials with a finite decay probability. The ensemble is characterized by the Kohlrausch-exponent β of the time dependence t(β) of the response at short times. The model is applied to shear and dielectric data from the literature.
authors.affiliation: Jülich Center for Neutron Science, Forschungszentrum Jülich, Postfach 1913, D-52425 Jülich, Federal Republic of Germany.
authors.forename: U
authors.initials: U
authors.lastname: Buchenau