摘要
本文以Lennard-Jones势描述惰性原子间的相互作用,将融化的统计几何理论应用到物理吸附在石墨表面的惰性原子单层的固液相变。由相变方程进行严格数值计算所得熔化曲线与计算机模拟实验结果相当接近,所得三相点约化温度为Tt=0.438,与吸附在石墨表面的惰性原子层实验测量结果和计算机模拟实验的结果也都有相当好的符合。
The interaction of inert-gas atoms is described by the Lennard-Jones potential, and the statistical geometric theory of melting is applied to study of the two dimensional solid-liquid phase transition of some inert-gas monolayers physically adsorbed on graphite. The melting line obtained from rigorous numerical calculation of phase transition equation agrees quite well with the results of computer simulation experiments. The reduced triple-point temperature of 0. 438 obtamed agrees with the data measured in experiments on some inert-gas monolayers adsprbed on graphite as well as in computer simulation experiments.
出处
《安徽大学学报(自然科学版)》
CAS
1995年第1期31-37,共7页
Journal of Anhui University(Natural Science Edition)
关键词
二维系统
固液相变
吸附
隋性原子
统计物理
two dimensional system, solid-liquid phase transition, statistical geometrical theory , adsorbed