Entropic origin of the growth of relaxation times in simple glassy liquids

Dasgupta, Chandan and Valls, Oriol T (1998) Entropic origin of the growth of relaxation times in simple glassy liquids. In: Physical Review, 58 (01). pp. 801-804.

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Abstract

Transitions between "glassy" local minima of a model free-energy functional for a dense hard-sphere system are studied numerically using a "microcanonical" Monte Carlo method that enables us to obtain the transition probability as a function of the free energy and the Monte Carlo "time." The growth of the height of the effective free-energy barrier with density is found to be consistent with a Vogel-Fulcher law. The dependence of the transition probability on time indicates that this growth is primarily due to an increase in the difficulty of finding low-free-energy paths to other minima.

Item Type:	Journal Article
Publication:	Physical Review
Publisher:	American Physical Society
Additional Information:	Copyright of this article belongs to American Physical Society.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	15 Jul 2009 10:14
Last Modified:	19 Sep 2010 05:24
URI:	http://eprints.iisc.ac.in/id/eprint/18568

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