Influence of the glass transition on the liquid-gas spinodal decomposition

Details Influence of the glass transition on the liquid-gas spinodal decomposition Influence of the glass transition on the liquid-gas spinodal decomposition

2011-01-12

arxiv.org/abs/1101.2293v1

Phys. Rev. Lett. 106, 125702 (2011)

Physics

Condensed Matter

Statistical Mechanics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.106.125702

We use large-scale molecular dynamics simulations to study the kinetics of the liquid-gas phase separation if the temperature is lowered across the glass transition of the dense phase. We observe a gradual change from phase separated systems at high temperatures to nonequilibrium, gel-like structures that evolve very slowly at low temperatures. The microscopic mechanisms responsible for the coarsening strongly depend on temperature, and change from diffusive motion at high temperature to a strongly intermittent, heterogeneous and thermally activated dynamics at low temperature, leading to logarithmically slow growth of the typical domain size.

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