SOLID-LIQUID TRANSITIONS IN ARGON CLUSTERS

被引：33

作者：

MATSUOKA, H ^{[1
]}

HIROKAWA, T ^{[1
]}

MATSUI, M ^{[1
]}

DOYAMA, M ^{[1
]}

机构：

[1] NAGOYA UNIV,DEPT MAT SCI & ENGN,NAGOYA 46401,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.69.297

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The solid-liquid transitions in argon clusters of medium size (N > 55) are studied by molecular dynamics simulations on a cluster of 79 atoms. Over an intermediate range of total energy, the cluster exhibits a "dynamical coexistence" of solid and liquid states, in which thc cluster fluctuates between solid and liquid states. We propose that for medium-sized clusters, the existence of two types of structures, low-energy solid and high-energy liquid structures, leads to the dynamical coexistence. We predict that the-dynamical coexistence is a finite-size effect of a bulk melting transition.

引用

页码：297 / 300

页数：4

共 17 条

[11] MOLECULAR-DYNAMICS STUDY OF MELTING AND FREEZING OF SMALL LENNARD-JONES CLUSTERS [J].