Connection between Adam-Gibbs theory and spatially heterogeneous dynamics

被引：125

作者：

Giovambattista, N ^{[1
]}

Buldyrev, SV

Starr, FW

Stanley, HE

机构：

[1] Boston Univ, Ctr Polymer Studies, Boston, MA 02215 USA

[2] Boston Univ, Dept Phys, Boston, MA 02215 USA

[3] Natl Inst Stand & Technol, Div Polymers, Gaithersburg, MD 20899 USA

[4] Natl Inst Stand & Technol, Ctr Theoret & Computat Mat Sci, Gaithersburg, MD 20899 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.90.085506

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the spatially heterogeneous dynamics in the extended simple point charge model of water using molecular dynamics simulations. We relate the average mass n(*) of mobile particle clusters to the diffusion constant and the configurational entropy. Hence, n(*) can be interpreted as the mass of the "cooperatively rearranging regions" that form the basis of the Adam-Gibbs theory of the dynamics of supercooled liquids. We also examine the time and temperature dependence of these transient clusters.

引用

页码：4 / 085506

页数：4

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