Quartic coupling and its effect on wetting behaviors in nematic liquid crystals

作     者：曾明颖 Holger Merlitz 吴晨旭 Zeng Ming-Ying;Holger Merlitz;Wu Chen-Xu

作者机构：Department of Physics and ITPAXiamen University College of Information Science and EngineeringHuaqiao University 

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

年 卷 期：2015年第24卷第2期

页      面：325-329页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 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）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.11374243) 

主　　题：quartic coupling surface anchoring energy phase transition wetting behavior 

摘      要：Based on the fact that rubbed groove patterns also affect the anchoring of liquid crystals at substrates,a quartic coupling is included in constructing the surface energy for a liquid crystal *** phase diagram and the wetting behaviors of the liquid crystal cell,bounded by surfactant-laden interfaces in a magnetic field perpendicular to the substrate are discussed by taking the quartic coupling into *** nematic order increases at the surface while it decreases in the bulk as a result of the introduction of quartic substrate-liquid crystal coupling,indicating that the groove anchoring makes the liquid crystal molecules align more orderly near the substrate than away from *** causes a different wetting behavior：complete wetting.