Phase transitions of heliconical smectic-C and heliconical nematic phases in banana-shaped liquid crystals

被引：3

作者：

Matsuyama, Akihiko ^{[1
]}

机构：

[1] Kyushu Inst Technol, Dept Phys & Informat Technol, Fac Comp Sci & Syst Engn, Kawazu 680-4, Fukuoka 8208502, Japan

来源：

PHYSICAL REVIEW E | 2020年 / 101卷 / 05期

关键词：

SYMMETRY-BREAKING;

D O I：

10.1103/PhysRevE.101.050701

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：

A mean-field theory is introduced to describe heliconical nematic (N-TB), heliconical smectic-C (SmCTB), and biaxial heliconical smectic-C (SmCTB,b) phases with mirror symmetry breaking We extend our previous theories of the N-TB phase to the heliconical smectic-C phases, by taking into account one-dimensional spatial ordering of smectic layers. The calculated phase diagrams on the temperature-alkyl chain length plane show a rich variety of phase transitions: first- and second-order N-TB-SmCTB transitions, etc., including tricritical, tetracritical, and multicritical points. Our theory is qualitatively consistent with an experimental phase diagram.

引用

页数：4

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