Surface-induced interaction of colloidal particles in isotropic liquid crystals  

作　　者：Hualing Zhang Kaifeng Weng Rui Ma 

机构地区：[1]Department of Physics,College of Physical Science and Technology,Xiamen University,Xiamen 361005,China [2]Fujian Provincial Key Laboratory for Soft Functional Materials Research,Research Institute for Biomimetics and Soft Matter,Xiamen University,Xiamen 361005,China

出　　处：《Communications in Theoretical Physics》2024年第7期114-122,共9页理论物理通讯（英文版）

基　　金：support from the National Natural Science Foundation of China under Grant No.12004317;Fundamental Research Funds for Central Universities of China under Grant No.20720200072;111 project No.B16029.

摘　　要：In this work,we study the interaction between two colloidal particles in a liquid crystal that is in the isotropic phase.The interaction is caused by surface-induced polarization of the liquid crystal molecules in the vicinity of the particles.We find that the interaction is short-ranged in both 2D and 3D geometry.Under symmetric homeotropic anchoring conditions,the interaction is repulsive.While under anti-symmetric homeotropic anchoring conditions,the interaction is repulsive at short distances but attractive at intermediate distances.The particle size has a strong impact on the effective interaction force.

关 键 词：surface-induced interaction colloidal particles liquid crystals 

分 类 号：O753.2[理学—晶体学]