Idealized glass transitions under pressure: dynamics versus thermodynamics

Details Idealized glass transitions under pressure: dynamics versus thermodynamics Idealized glass transitions under pressure: dynamics versus thermodynamics

2008-08-05

arxiv.org/abs/0808.0568v1

Physics

Condensed Matter

Materials Science

to be published in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.101.095701

The interplay of slow dynamics and thermodynamic features of dense liquids is studied by examinining how the glass transition changes depending on the presence or absence of Lennard-Jones-like attractions. Quite different thermodynamic behavior leaves the dynamics unchanged, with important consequences for high-pressure experiments on glassy liquids. Numerical results are obtained within mode-coupling theory (MCT), but the qualitative features are argued to hold more generally. A simple square-well model can be used to explain generic features found in experiment.

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