双轴向列相液晶中畴壁的研究  

Domain Walls in Bixial Nematic Liquid Crystals

作　　者：李健[1] 周璇[1] 王晓燕[2] 徐洪亮[2] 张志东[1] 

机构地区：[1]河北工业大学理学院,天津300401 [2]河北冀雅电子有限公司

出　　处：《液晶与显示》2013年第3期301-304,共4页Chinese Journal of Liquid Crystals and Displays

基　　金：国家自然科学基金(No.60878047);河北省自然科学基金(No.A2010000004);河北省重点学科资助项目

摘　　要：利用双轴向列相液晶的连续体弹性理论研究畴壁,在双轴相中发现了9种不同的畴壁。这些畴壁的形状与单轴向列相中的畴壁相似。忽略展曲形变和弯曲形变之间的弹性各向异性,发现双轴相中的展-弯曲壁与扭曲壁有相似的解析解。通过对展-弯曲壁进行数值计算,发现弹性常数的比值会影响畴壁的宽度。Within the framework of the continuum elastic theory of biaxial nematic liquid crystals,domain walls were studied.Nine different domain walls in biaxial nematics were found.The shapes of these walls are similar to those in uniaxial nematics.By neglecting the elastic anisotropy concerned with splay and bend distortions,it is found that the analytic solutions of splay-bend walls are similar to that of twist walls.The numerical solutions of splay-bend walls show that the ratio of the elastic constants affects the width of the walls.

关 键 词：轴 畴壁 解析解 数值计算 

分 类 号：O753.2[理学—晶体学]