Non-Debye screening of a surface charge and a bulk-ion-controlled anchoring transition in a nematic liquid crystal

被引：32

作者：

Nazarenko, VG ^{[1
]}

Pergamenshchik, VM ^{[1
]}

Koval'chuk, OV ^{[1
]}

Nych, AB ^{[1
]}

Lev, BI ^{[1
]}

机构：

[1] Inst Phys, UA-25022 22 Kyiv, Ukraine

来源：

PHYSICAL REVIEW E | 1999年 / 60卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.60.5580

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：

We study the anchoring mechanism due to substrate-adsorbed ions by examining a related anchoring transition. An analytical solution to the Poisson equation shows that, as their number suffices for a non-negligible anchoring contribution, the surface field is screened over some characteristic microscopic distance. It is shown both theoretically and experimentally that the critical temperature of the transition can be controlled by bulk ion density through its relation to the density of adsorbed ions. [S1063-651X(99)17710-9].

引用

页码：5580 / 5583

页数：4

共 12 条

[1] Ionic adsorption and equilibrium distribution of charges in a nematic cell [J].