CAN CLUSTERS BE SUPERHEATED

被引：21

作者：

BROUGHTON, J

机构：

[1] Complex Systems Theory Branch, Naval Research Laboratory, Washington

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.67.2990

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that clusters coated with higher-melting-point material can be superheated above their thermodynamic melting point even when the effects of increased internal pressure are included. The work involves molecular-dynamics simulations of Lennard-Jones systems with coatings of differing strength of interaction. Reference is made to full thermodynamic analyses of the one- and two-component phase diagrams. Mechanisms responsible for this enhanced stability are determined.

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页码：2990 / 2993

页数：4

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