Study of elastic constant ratios in nematic liquid crystals -: art. no. 051915

被引：33

作者：

Strömer, JF

Raynes, EP

Brown, CV

机构：

[1] Univ Oxford, Dept Engn & Sci, Oxford OX1 3PJ, England

[2] Nottingham Trent Univ, Sch Biomed & Nat Sci, Nottingham NG11 8NS, England

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.2162694

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A technique has recently been proposed for determining the elastic constant ratio K-22/K-11 in nematic liquid crystals [E. P. Raynes, C. V. Brown, and J. F. Stromer, Appl. Phys. Lett. 82, 13 (2003)]. This technique has been applied to five nematic materials that cover a range of K-33/K-11 elastic constant ratio values. An unusually high value of K-22/K-11 is found in one material. High values of the ratio K-22/K-11 tended to occur in materials that also have high values of the ratio K-33/K-11. The results are validated with independent measurements of K-22 from cholesteric helix unwinding. (c) 2006 American Institute of Physics.

引用

页码：1 / 3

页数：3