The instantaneous shear modulus in the shoving model

J. C. Dyre, W. H. Wang

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We point out that the instantaneous shear modulus G∞ of the shoving model for the non-Arrhenius temperature dependence of viscous liquids’ relaxation time is the experimentally accessible highfrequency plateau modulus, not the idealized instantaneous affine shear modulus that cannot be measured. Data for a large selection of metallic glasses are compared to three different versions of the shoving model. The original shear-modulus based version shows a slight correlation to the Poisson ratio, which is eliminated by the energy-landscape formulation of the model in which the bulk modulus plays a minor role
Original languageEnglish
JournalJournal of Chemical Physics
Volume136
Pages (from-to)224108-1 til 224108-5
Number of pages5
ISSN0021-9606
DOIs
Publication statusPublished - 2012

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