Elastic Models for the Non-Arrhenius Relaxation Time of Glass-Forming Liquids

Details Elastic Models for the Non-Arrhenius Relaxation Time of Glass-Forming Liquids Elastic Models for the Non-Arrhenius Relaxation Time of Glass-Forming Liquids

2006-01-13

arxiv.org/abs/cond-mat/0601283v1

J. Non-Cryst. Solids 352, 5210 (2006)

Physics

Condensed Matter

Soft Condensed Matter

Paper presented at the IWCS2005 (Nov. 2005, Sendai, Japan)

Scientific paper

10.1063/1.2204470

We first review the phenomenology of viscous liquids and the standard models used for explaining the non-Arrhenius average relaxation time. Then the focus is turned to the so-called elastic models, arguing that these models are all equivalent in the Einstein approximation (where the short-time elastic properties are all determined by just one effective, temperature-dependent force constant). We finally discuss the connection between the elastic models and two well-established research fields of condensed-matter physics: point defects in crystals and solid-state diffusion.

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