Numerical simulation of the TGB phase of chiral liquid crystals

被引：0

作者：

Ogawa, Hiroto ^{[1
]}

Uchida, Nariya ^{[1
]}

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2007年 / 477卷

关键词：

chiral liquid crystal; defect structure; minimal surface; twist-grain-boundary;

D O I：

10.1080/15421400701.734031

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We numerically minimized the Landau-de Gennes free energy to investigate the layer structure of the twist-grain boundary (TGB) phase of chiral liquid crystals. We compare the obtained structure with Scherk's minimial surface. For large twist angles, an unlocking of the director and the layer orientation reduces the effective layer bending rigidity, which causes a large deviation of the mean curvature from zero. At temperatures close to the TGB-cholesteric transition, we find a melting of the smectic layers in the whole grain boundary.

引用

页码：511 / 515

页数：5