ON ENTROPY AND ORDERING IN BINARY HARD-SPHERE MIXTURES

被引：29

作者：

SAIJA, F

GIAQUINTA, PV

GIUNTA, G

PRESTIPINO, S

机构：

[1] UNIV MESSINA, DIPARTIMENTO FIS, I-98166 SANT AGATA DI MILITELLO, ITALY

[2] SCUOLA INT SUPER STUDI AVANZATI, SISSA, I-34013 TRIESTE, ITALY

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 46期

关键词：

D O I：

10.1088/0953-8984/6/46/005

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The configurational entropy of a binary mixture of unequal hard spheres is analysed over a wide range of densities and concentrations as a sum of two contributions: a pair term, s(2), arising from two-body spatial correlations, and a residual term, Delta s, that is due to correlations involving more than two particles. The validity of a one-phase ordering criterion, based on the non-monotonic behaviour of Delta s as a function of the total packing fraction, is investigated in relation to the phase transformations undergone by the model.

引用

页码：9853 / 9865

页数：13

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