Analogy of the slow dynamics between the supercooled liquid and supercooled plastic crystal states of difluorotetrachloroethane

被引：14

作者：

Affouard, F ^{[1
]}

Descamps, M ^{[1
]}

机构：

[1] Univ Lille 1, CNRS, UMR 8024, Lab Dynam & Struct Mat Mol, F-59655 Villeneuve Dascq, France

来源：

PHYSICAL REVIEW E | 2005年 / 72卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.72.012501

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Slow dynamics of difluorotetrachloroethane in both supercooled plastic crystal and supercooled liquid states have been investigated with molecular dynamics simulations. The temperature and wave-vector dependence of collective dynamics in both states are probed using coherent dynamical scattering functions S(Q,t). Our results confirm the strong analogy between molecular liquids and plastic crystals for which alpha-relaxation times and nonergodicity parameters are controlled by the nontrivial static correlations S(Q), as predicted by the mode coupling theory.

引用

页数：4

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