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arXiv · cond-mat/0601377

What can we learn by squeezing a liquid

R. Casalini·S. Capaccioli·C. M. Roland
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Abstract

Relaxation times for different temperatures, T, and specific volumes, V, collapse to a master curve versus TV^g, with g a material constant. The isochoric fragility, m_V, is also a material constant, inversely correlated with g. From these we obtain a 3-parameter function, which fits accurately relaxation times of several glass-formers over the supercooled regime, without any divergence below Tg. Although the 3 parameters depend on the material, only g significant varies; thus, by normalizing material-specific quantities related to g, a universal power law for the dynamics is obtained.

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R. Casalini, S. Capaccioli, C. M. Roland. 2006-01-17. What can we learn by squeezing a liquid. https://arxiv.org/abs/cond-mat/0601377

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