OPTICAL DETERMINATION OF THE SADDLE-SPLAY ELASTIC-CONSTANT K(24) IN NEMATIC LIQUID-CRYSTALS

被引：79

作者：

POLAK, RD ^{[1
]}

CRAWFORD, GP ^{[1
]}

KOSTIVAL, BC ^{[1
]}

DOANE, JW ^{[1
]}

ZUMER, S ^{[1
]}

机构：

[1] UNIV LJUBLJANA,DEPT PHYS,LJUBLJANA,SLOVENIA

来源：

PHYSICAL REVIEW E | 1994年 / 49卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.49.R978

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：

Nematic liquid crystals confined to supramicrometer capillary tubes with homeotropic anchoring conditions are studied using optical polarizing microscopy. The resulting microscopy textures are sensitive to the molecular anchoring strength W(theta) and the saddle-splay surface elastic constant K24. These two quantities are determined by comparing the observed textures of the escaped-radial nematic director field to simulated textures predicted from Frank elastic theory and considering the stability ranges of other possible structures.

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页码：R978 / R981

页数：4

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