PARITY-BREAKING PHASE-TRANSITION IN TANGENTIALLY ANCHORED NEMATIC DROPS

被引：42

作者：

LAVRENTOVICH, OD

SERGAN, VV

机构：

[1] Institute of Physics of the Ukrainian Academy of Sciences, Kiev-28, 252 650, pr. Nauki

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS | 1990年 / 12卷 / 09期

关键词：

Defects in liquid crystals; Experimental determinations of smectic; nematic; cholesteric; and lyotropic structures; Orientational order of liquid crystals; electric and magnetic field effects on order;

D O I：

10.1007/BF02450386

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The existence of the parity-breaking phase transition between untwisted and twisted bipolar structures of the tangentially anchored spherical nematic drops has been shown experimentally. Twisted structures behave like the optically active objects in spite of the nonactivity of nematic and isotropic matrix themselves. Temperature dependences of the order parameter (twist angle) have been determined for the drops of 8 CB and 8 OCB. It has been shown that these dependences are very similar to that observed in usual second-order phase transition. © 1990 Società Italiana di Fisica.

引用

页码：1219 / 1222

页数：4

共 11 条

[1] MAGNETIC-FIELD EFFECTS IN NEMATIC AND CHOLESTERIC DROPLETS SUSPENDED IN AN ISOTROPIC LIQUID [J].