Potential effects on instantaneous normal modes of liquids

Ten-Ming Wu*, Wen Jong Ma, Shiow Fon Tsay

*Corresponding author for this work

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)

摘要

We calculated the instantaneous-normal-mode (INM) densities of states for liquid Na, Lennard-Jones (LJ) liquid and truncated LJ liquid with the same reduced density and temperature by both molecular-dynamics simulation and the vector-random-walk approach under two-body approximation. By comparing the calculated results for these three liquids, we give some physical insights in the relationship between the INM density of state and the two-particle interaction potential. The effects of the short-range repulsive core, the long-range tail in the potential and the presence of attractive well are elucidated.

原文English
頁(從 - 到)257-271
頁數15
期刊Physica A: Statistical Mechanics and its Applications
254
發行號1-2
DOIs
出版狀態Published - 15 五月 1998

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