Theory of Ferroelectric Nanoparticles in Nematic Liquid Crystals

被引：155

作者：

Lopatina, Lena M. ^{[1
]}

Selinger, Jonathan V. ^{[1
]}

机构：

[1] Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 19期

关键词：

SUSPENSION; PARTICLES; DEFECTS;

D O I：

10.1103/PhysRevLett.102.197802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent experiments have reported that ferroelectric nanoparticles have drastic effects on nematic liquid crystals-increasing the isotropic-nematic transition temperature by about 5 K, and greatly increasing the sensitivity to applied electric fields. To understand these effects, we develop a theory for the statistical mechanics of ferroelectric nanoparticles in liquid crystals. This theory predicts the enhancements of liquid-crystal properties, in good agreement with experiments. These predictions apply even when electrostatic interactions are partially screened by moderate concentrations of ions.

引用

页数：4

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