On the study of collective dynamics in supercooled liquids through the statistics of the isoconfigurational ensemble

被引:88
作者
Widmer-Cooper, Asaph [1 ]
Harrowell, Peter [1 ]
机构
[1] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia
基金
澳大利亚研究理事会;
关键词
D O I
10.1063/1.2719192
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The use of the isoconfigurational ensemble to explore structure-dynamic correlations in supercooled liquids is examined. The statistical error of the dynamic propensity and its spatial distribution are determined. The authors present the spatial distribution of the particle non-Gaussian parameter as a measure of the intermittency with which particles exhibit their propensity for motion. The ensemble average of the direction of particle motion is introduced to establish the anisotropy of the dynamic propensity. (c) 2007 American Institute of Physics.
引用
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页数:9
相关论文
共 22 条
[1]  
[Anonymous], 1987, Statistical Analysis of Spherical Data
[2]   Reproducibility of dynamical heterogeneities and metabasin dynamics in glass forming liquids: The influence of structure on dynamics [J].
Appignanesi, GA ;
Fris, JAR ;
Frechero, MA .
PHYSICAL REVIEW LETTERS, 2006, 96 (23)
[3]   Intermittency in ageing [J].
Buisson, L ;
Bellon, L ;
Ciliberto, S .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2003, 15 (11) :S1163-S1179
[4]   GLASSY RELAXATION AT SURFACES - THE CORRELATION LENGTH OF COOPERATIVE MOTION IN THE FACILITATED KINETIC ISING-MODEL [J].
BUTLER, S ;
HARROWELL, P .
JOURNAL OF CHEMICAL PHYSICS, 1991, 95 (06) :4466-4470
[5]   Slow dynamics in glassy soft matter [J].
Cipelletti, L ;
Ramos, L .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2005, 17 (06) :R253-R285
[6]   Intermittency of glassy relaxation and the emergence of a non-equilibrium spontaneous measure in the aging regime [J].
Crisanti, A ;
Ritort, F .
EUROPHYSICS LETTERS, 2004, 66 (02) :253-259
[7]   Spatially heterogeneous dynamics in supercooled liquids [J].
Ediger, MD .
ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 2000, 51 :99-128
[8]   Amorphous ground states and collective dynamics in a 2D glass-forming mixture [J].
Fynewever, H ;
Perera, D ;
Harrowell, P .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2000, 12 (8A) :A399-A402
[9]  
HURELY M, 1995, PHYS REV E, V52, P1694
[10]   Non-Gaussian behavior and the dynamical complexity of particle motion in a dense two-dimensional liquid [J].
Hurley, MM ;
Harrowell, P .
JOURNAL OF CHEMICAL PHYSICS, 1996, 105 (23) :10521-10526