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arXiv · 0808.2589

Tracking heterogeneous dynamics during the alpha-relaxation of a simple glass-former

Pinaki Chaudhuri·Srikanth Sastry·Walter Kob
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Abstract

We study the relaxation process in a simple glass-former - the KA lattice gas model. We show that, for this model, structural relaxation is due to slow percolation of regions of co-operatively moving particles, which leads to heterogeneous dynamics of the system. We find that the size distribution of these regions is given by a power-law and that their formation is encoded in the initial structure of the particles, with the memory of initial configuration increasingly retained with increasing density.

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Pinaki Chaudhuri, Srikanth Sastry, Walter Kob. 2008-11-10. Tracking heterogeneous dynamics during the alpha-relaxation of a simple glass-former. https://doi.org/10.1103/physrevlett.101.190601

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