Chaudhuri, Pinaki ; Sastry, Srikanth ; Kob, Walter (2008) Tracking heterogeneous dynamics during the α relaxation of a simple glass former Physical Review Letters, 101 (19). 190601_1-190601_4. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v101/i19/e190601
Related URL: http://dx.doi.org/10.1103/PhysRevLett.101.190601
Abstract
We study the relaxation process in a simple glass former-the Kob-Andersen lattice gas model. We show that, for this model, structural relaxation is due to slow percolation of regions of cooperatively 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.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Physical Society. |
ID Code: | 50137 |
Deposited On: | 21 Jul 2011 14:29 |
Last Modified: | 21 Jul 2011 14:29 |
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