Electro–optic response in thin smectic C* film with chevron structures

作     者：Aleksey A Kudreyko Nail G Migranov Dana N Migranova 

作者机构：Ufa State Petroleum Technological UniversityDepartment of Physics Bashkir State Pedagogical UniversityDepartment of General and Theoretical Physics 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2016年第25卷第12期

页      面：337-343页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 

基　　金：Project supported by the Russian Foundation for Basic Research(RFBR)(Grant Nos.16-32-00043 and 14-02-97026) 

主　　题：surface-stabilized ferroelectric liquid crystal chevron structure thin films bistability Euler'sequation 

摘      要：The effects in electrostatic models of chevron surface-stabilized ferroelectric liquid crystals are investigated through numerical modeling. To study smectic C＊ director distribution within the cell, we consider two nonlinear approaches： the chevron interface does not interplay with the electric field; the electric field interplays with the chevron interface. The obtained results of the director field distribution are compared with the earlier linearized studies. We find that whether or not the electric field interplays with the chevron interface, the electro-optic response requires a generalized approach for its description. The threshold electric field, which is necessary for switching between two stable director states in the chevron cell is evaluated. This study suggests that, in many cases of practical interest, electro-optic response to the electric field and the threshold electric field can be precisely estimated. We argue that, beside being numerically efficient, our approach provides a convenient and a novel standpoint for looking at the electro-optic response problem.