Properties of a glass-forming system as derived from its potential energy landscape

被引：139

作者：

Heuer, A

机构：

[1] Max-Planck-Institut für Polymerforschung, Mainz, D-55128

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 21期

关键词：

STRUCTURAL MODEL GLASS; SUPERCOOLED LIQUIDS; RELAXATION; DYNAMICS; SURFACES; CLUSTERS;

D O I：

10.1103/PhysRevLett.78.4051

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Many properties of glass-forming systems can be explained in terms of their multidimensional potential energy landscape. Here the total potential energy landscape of a small glass-forming system with periodic boundary conditions is determined numerically. An appropriate one-dimensional projection is introduced. It allows one to visualize how crystalline and amorphous regions are separated from each other and to find a direct explanation of prominent dynamic features observed in molecular dynamics simulations. The energy landscape and the occurrence of tunneling systems is elucidated for different densities.

引用

页码：4051 / 4054

页数：4

共 33 条

[31] USE OF AN EIGENMODE METHOD TO LOCATE THE STATIONARY-POINTS ON THE POTENTIAL-ENERGY SURFACES OF SELECTED ARGON AND WATER CLUSTERS [J].