Two Kinds of Boundary Motions in Thin Ferroelectric Smectic C* Liquid Crystals
Two Kinds of Boundary Motions in Thin Ferroelectric Smectic C* Liquid Crystals
复制标题
薄铁电层列C*液晶中的两种边界运动
DOI：
10.1143/jjap.24.l230
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发表时间：
1985
影响因子：
1.5
通讯作者：
A. Fukuda
中科院分区：
文献类型：
--
作者：
K. Ishikawa;T. Uemura;H. Takezoe;A. Fukuda
研究了低频三角波作用下薄铁电液晶电池的开关过程。指出存在三种切换过程，并将其分为两类边界运动。一种是由于内部2π偏斜运动而不改变表面分子取向，另一种是由于上下表面c -director的反转，这可能伴随着表面偏斜运动。考虑±2 π楔位错的结构不对称，讨论了分离两种扭曲态的位错环的场致运动。
The switching process in thin ferroelectric liquid crystal cells under low frequency triangular wave is studied. It is pointed out that there exist three switching processes which are classified into two kinds of boundary motions. One is attributed to an interior 2π disclination motion without changing surface molecular orientation, while the other to a reversion of C-directors on a top and bottom surface which may accompany a surface disclination motion. The field induced motion of a disclination loop separating two kinds of twisted states is discussed by taking into account a structural asymmetry of ±2 π wedge disclinations.