Interaction of small spherical particles in confined cholesteric liquid crystals
Interaction of small spherical particles in confined cholesteric liquid crystals
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受限胆甾型液晶中小球形颗粒的相互作用
DOI：
10.1103/physreve.89.012509
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发表时间：
2014
影响因子：
2.4
通讯作者：
and S.B. Chernyshuk
中科院分区：
文献类型：
--
作者：
B.I. Lev;J. Fukuda;O.M. Tovkach;and S.B. Chernyshuk
本文提出了浸入受限液晶中的球形胶体粒子的弹性相互作用理论。被认为是弱锚定的情况下的颗粒表面。我们推导出一个一般表达式的相互作用的能量之间的小球形粒子（直径远小于间距）悬浮在一个由两个平行的平面限制。由此产生的形式的相互作用能有一个更复杂的空间模式和能量与距离的依赖性比在胶体中。与螺旋周期性相关的平移对称性的缺乏和在双折射液晶中的局部双折射有序性在相互作用映射的复杂性质中表现出来。
The theory of the elastic interaction of spherical colloidal particles immersed into a confined cholesteric liquid crystal is proposed. The case of weak anchoring on the particle surfaces is considered. We derive a general expression for the energy of the interaction between small spherical particles (with diameter much smaller than the cholesteric pitch) suspended in a cholesteric confined by two parallel planes. The resulting form of the interaction energy has a more complex spatial pattern and energy versus distance dependence than that in nematic colloids. The absence of translational symmetry related to helical periodicity and local nematic ordering in cholesteric liquid crystals manifest themselves in the complex nature of the interaction maps.