ORIENTATIONAL ORDER IN SIMPLE DIPOLAR FLUIDS - DENSITY-FUNCTIONAL THEORY AND ABSOLUTE-STABILITY CONDITIONS

被引：71

作者：

WEI, DQ ^{[1
]}

PATEY, GN ^{[1
]}

PERERA, A ^{[1
]}

机构：

[1] UNIV PARIS 06,PHYS THEOR LIQUIDES LAB,F-75252 PARIS 05,FRANCE

来源：

PHYSICAL REVIEW E | 1993年 / 47卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.47.506

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The formation of ferroelectric liquid crystals by simple dipolar models is investigated using density-functional theory and absolute-stability analysis. It is emphasized that for such systems well defined results can only be found by specifying exactly how the long-range dipolar interactions are treated. Explicit formal expressions are derived for mean-reaction-field boundary conditions and these are combined with integral-equation approximations in order to obtain numerical results for fluids of dipolar hard and soft spheres. The calculations predict isotropic-to-ferroelectric-nematic transitions in qualitative agreement with computer simulations. The quantitative agreement, however, is rather poor.

引用

页码：506 / 512

页数：7

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