Gas-liquid phase coexistence and finite-size effects in a two-dimensional Lennard-Jones system
Gas-liquid phase coexistence and finite-size effects in a two-dimensional Lennard-Jones system
复制标题
二维 Lennard-Jones 系统中的气液相共存和有限尺寸效应
DOI：
10.1007/s11434-011-4611-z
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发表时间：
2011-08
影响因子：
--
通讯作者：
孙祉伟
中科院分区：
文献类型：
--
作者：
欧阳文泽;徐升华;孙祉伟
使用麦克斯韦构造法结合分子动力学模拟研究了二维 Lennard - Jones系统中的气 - 液相共存。比较了在不同势能截断情况下相共存的结果。
The gas-liquid phase coexistence in a two-dimensional Lennard-Jones system is investigated using Maxwell construction method together with molecular dynamics simulations. The results of phase coexistence in different truncations of the potential are compared with data obtained from the literature, and the corresponding critical properties calculated. The crossover from Ising-like to mean field behavior is observed and confirmed as the temperature approaches the critical point from below. Performing simulations on systems with different sizes, we find that a finite size effect is more significant than those shown in most of the previous results, and a lower critical temperature is obtained when the full extent of this finite size effect is considered.
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通讯作者：
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