STRUCTURE AND THERMODYNAMICS OF LIQUID ALKALI-METALS IN VARIATIONAL MODIFIED HYPERNETTED-CHAIN THEORY

NCU Institutional Repository > 理學院 > 物理研究所 > 期刊論文 > Item 987654321/39366

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/39366

题名:	STRUCTURE AND THERMODYNAMICS OF LIQUID ALKALI-METALS IN VARIATIONAL MODIFIED HYPERNETTED-CHAIN THEORY
作者:	CHEN,HC;LAI,SK
贡献者:	物理研究所
关键词:	ONE-COMPONENT-PLASMA;DENSE IONIZED MATTER;HARD-SPHERE;REFERENCE SYSTEMS;FREE-ENERGY;STATISTICAL-MECHANICS;PERTURBATION-THEORY;INTEGRAL-EQUATIONS;APPROXIMATION;ALLOYS
日期:	1992
上传时间:	2010-07-08 14:13:34 (UTC+8)
出版者:	中央大學
摘要:	The role of the Percus-Yevick hard-sphere bridge function in the modified hypernetted-chain integral equation is examined within the context of Lado's criterion [F. Lado, S. M. Foiles, and N. W. Ashcroft, Phys. Rev. A 28, 2374 (1983)]. It is found that the commonly used Lado's criterion, which takes advantage of the analytical simplicity of the Percus-Yevick hard-sphere bridge function, is inadequate for determining an accurate static pair-correlation function. Following Rosenfeld [Y. Rosenfeld, Phys. Rev. A 29, 2877 (1984)], we reconsider Lado's criterion in the so-called variational modified hypernetted-chain theory. The main idea is to construct a free-energy functional satisfying the virial-energy thermodynamic self-consistency. It turns out that the widely used Gibbs-Bogoliubov inequality is equivalent to this integral approach of Lado's criterion. Detailed comparison between the presently obtained structural and thermodynamic quantities for liquid alkali metals and those calculated also in the modified hypernetted-chain theory but with the one-component-plasma reference system leads us to a better understanding of the universality property of the bridge function.
關聯:	PHYSICAL REVIEW A
显示于类别:	[物理研究所] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	504	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing

数据加载中.....