Quantifying spatially heterogeneous dynamics in computer simulations of glass-forming liquids

被引:63
作者
Glotzer, SC [1 ]
Donati, C
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
10.1088/0953-8984/11/10A/026
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We examine the phenomenon of dynamical heterogeneity in computer simulations of an equilibrium, glass-forming liquid. We describe several approaches for quantifying the spatial correlation of single-particle motion, and show that spatial correlations of particle displacements become increasingly long range as the temperature decreases toward the made-coupling critical temperature.
引用
收藏
页码:A285 / A295
页数:11
相关论文
共 34 条
[1]  
Aharony A, 1995, INTRO PERCOLATION TH, Vsecond
[2]  
ALLEGRINI P, 1999, UNPUB
[3]   Length scale of cooperativity in the dynamic glass transition [J].
Arndt, M ;
Stannarius, R ;
Groothues, H ;
Hempel, E ;
Kremer, F .
PHYSICAL REVIEW LETTERS, 1997, 79 (11) :2077-2080
[4]  
BENNEMANN C, 1999, PREPRINT
[5]   Nature of the non-exponential primary relaxation in structural glass-formers probed by dynamically selective experiments [J].
Bohmer, R ;
Chamberlin, RV ;
Diezemann, G ;
Geil, B ;
Heuer, A ;
Hinze, G ;
Kuebler, SC ;
Richert, R ;
Schiener, B ;
Sillescu, H ;
Spiess, HW ;
Tracht, U ;
Wilhelm, M .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1998, 235 :1-9
[6]   RELAXATION OF SPATIALLY HETEROGENEOUS DYNAMIC DOMAINS IN SUPERCOOLED ORTHO-TERPHENYL [J].
CICERONE, MT ;
EDIGER, MD .
JOURNAL OF CHEMICAL PHYSICS, 1995, 103 (13) :5684-5692
[7]   The liquid-glass transition: a mode-coupling perspective [J].
Cummins, HZ .
JOURNAL OF PHYSICS-CONDENSED MATTER, 1999, 11 (10A) :A95-A117
[8]   Cage effect, local anisotropies, and dynamic heterogeneities at the glass transition: A computer study of hard spheres [J].
Doliwa, B ;
Heuer, A .
PHYSICAL REVIEW LETTERS, 1998, 80 (22) :4915-4918
[9]   Stringlike cooperative motion in a supercooled liquid [J].
Donati, C ;
Douglas, JF ;
Kob, W ;
Plimpton, SJ ;
Poole, PH ;
Glotzer, SC .
PHYSICAL REVIEW LETTERS, 1998, 80 (11) :2338-2341
[10]  
DONATI C, 1998, CONDMAT9811145