The phase diagram and spinodal decomposition of metastable states of Lennard-Jones system

被引：28
|
作者：
Kuksin, A. Yu. [1 ]
Norman, G. E.
Stegailov, V. V.
机构：
[1] Russian Acad Sci, IVTAN, Joint Inst High Temp, Inst High Dens, Moscow 125412, Russia
[2] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow, Russia
来源：
HIGH TEMPERATURE | 2007年 / 45卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/S0018151X07010063
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The method of molecular dynamics is used to treat the metastable states of Lennard-Jones crystal and liquid at different temperatures and pressures, including the negative-pressure region. Analysis is made of the pattern of relative position of surfaces of the equation of state of the crystal and liquid phases in the metastable region. The limits of stability of metastable states of liquid and crystal on the phase diagram are determined. The mechanism of crystal decomposition in the vicinity of the stability limit is treated. The stochastic properties of a many-particle system are investigated in the region in the vicinity of the spinodal, and the dynamic memory time and K-entropy are calculated.
引用
收藏
页码：37 / 48
页数：12
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