Bond-Ordering Model for the Glass Transition

Details Bond-Ordering Model for the Glass Transition Bond-Ordering Model for the Glass Transition

2000-03-04

arxiv.org/abs/cond-mat/0003059v1

Complete version in Phys. Rev. B 64, 224206 (2001)

Physics

Condensed Matter

7 pages, 6 figures

Scientific paper

10.1103/PhysRevB.64.224206

We consider the idea of bond ordering as a model for glass transition: a generic covalently bonded liquid may substantially reduce its energy through bond ordering, without undergoing significant structural order. This concept is developed for a model system using quantities such as a bond order parameter and susceptibility which provide new identification for calorimetric glass transition temperature. Monte Carlo simulation results exhibit bond ordering at intermediate temperatures uncorrelated with any long-range structural ordering. Also discussed are various other implications of bond-ordering model for glass transition.

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