Criticality in polar fluids

被引：22
|
作者：
Levin, Y
Kuhn, PS
Barbosa, MC
机构：
[1] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil
[2] Univ Calif Santa Barbara, Inst Theoret Phys, Santa Barbara, CA 93106 USA
[3] Univ Fed Rio Grande do Norte, Dept Fis, BR-59072970 Natal, RN, Brazil
[4] Boston Univ, Ctr Polymer Studies, Boston, MA 02215 USA
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2001年 / 292卷 / 1-4期
基金：
美国国家科学基金会;
关键词：
polar fluid; dipoles; criticality; phase transitions; Debye-Huckel;
D O I：
10.1016/S0378-4371(00)00631-2
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A model of polar fluid is studied theoretically. The interaction potential, in addition to dipole-dipole term, possesses a dispersion contribution of the van der Waals-London form. It is found that when the dispersion force is comparable to dipole-dipole interaction, the fluid separates into coexisting liquid and gas phases. The calculated critical parameters are in excellent agreement with Monte Carlo simulations. When the strength of dispersion attraction is below critical, no phase separation is found. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码：129 / 136
页数：8
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