Spatially heterogeneous dynamics in liquids: insights from simulation

被引:377
作者
Glotzer, SC
机构
[1] NIST, Div Polymers, Gaithersburg, MD 20899 USA
[2] NIST, Ctr Theoret & Computat Mat Sci, Gaithersburg, MD 20899 USA
关键词
D O I
10.1016/S0022-3093(00)00225-8
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In this paper, review of recent theoretical and simulation work on dynamical heterogeneity and correlated particle motion in glass-forming liquids and polymers is presented. Evidence for increasing mobility fluctuations in these systems with decreasing temperature, and the relationship between dynamical heterogeneity and decoupling of diffusion and structural relaxation is described. The relationship between dynamical heterogeneity, string-like collective motion, the clustering of strings, and mode-coupling theory is briefly discussed. (C) 2000 Elsevier Science B.V. All rights reserved.
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页码:342 / 355
页数:14
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