ASYMMETRIC CRYSTALLIZATION AND MELTING KINETICS IN SODIUM - A MOLECULAR-DYNAMICS STUDY

被引：39

作者：

TYMCZAK, CJ

RAY, JR

机构：

[1] Department of Physics and Astronomy, Clemson University, Clemson

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.64.1278

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Computer-simulation studies of the crystallization and melting of a model of sodium have been carried out to determine the (001) steady-state velocity versus temperature relation in the temperature region 81 to 497 K. Using a form of transition-state theory there is an apparent slope discontinuity in the velocity versus temperature relation at the melting point, which is correlated with slope discontinuities in averaged order parameters for planes buried in the crystal; planes appear to soften more per unit temperature increase above the melting point leading to larger melting velocities. © 1990 The American Physical Society.

引用

页码：1278 / 1281

页数：4

共 21 条

[1] CRYSTALLIZATION RATES OF A LENNARD-JONES LIQUID [J].