Retardation and flow at the glass transition.
basic_science · Level V
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- Record sourced from PubMed, PMID 27078415.
- Also identified by DOI 10.1103/PhysRevE.93.032608.
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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.