THEORY OF THE NONEQUILIBRIUM PHASE-TRANSITION FOR NEMATIC LIQUID-CRYSTALS UNDER SHEAR-FLOW

被引：143

作者：

OLMSTED, PD ^{[1
]}

GOLDBART, P ^{[1
]}

机构：

[1] UNIV ILLINOIS, MAT RES LAB, URBANA, IL 61801 USA

来源：

PHYSICAL REVIEW A | 1990年 / 41卷 / 08期

关键词：

D O I：

10.1103/PhysRevA.41.4578

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We consider the impact of shear flow on the isotropic-nematic transition in crystalline liquids by generalizing Leslie-Ericksen dynamics of nematic systems to include amplitude and biaxial degrees of freedom. Neglecting fluctuations, we find steady-state solutions to the equations of motion for the nematic order parameter and fluid velocity and interpret them in terms of nonequilibrium steady states. We predict a transition temperature increasing with shear rate up to a nonequilibrium critical point, and discuss the singular behavior of the order parameter and external stress near this point. © 1990 The American Physical Society.

引用

页码：4578 / 4581

页数：4

共 20 条

[1]

de Groot S. R., 1984, NONEQUILIBRIUM THERM

[2] SHORT RANGE ORDER EFFECTS IN ISOTROPIC PHASE OF NEMATICS AND CHOLESTERICS [J].