摘要
The director configurations of nematic liquid crystalline droplets and their corresponding configuration transitions were studied with Monte Carlo simulation in cubic lattices. The Lebwohl-Lasher (LL) nematogen potential was employed as the prototype of the nematic interaction between nearest-neighbor rodlike molecules. It has been found that the director configurations of nematic droplets change with the mode and strength of the interfacial interaction as well as temperature. Further description is given of the restructuring processes of spheric and elliptic nematic droplets subjected to different strengths of external fields. These results are, hence, helpful for understanding the display mechanism of polymer dispersed liquid crystal materials. The studies also demonstrate that Monte Carlo simulation based on LL model is an effective method for investigating the physics in the small systems of liquid crystal under confined geometries.
The director configurations of nematic liquid crystalline droplets and their corresponding configuration transitions were studied with Monte Carlo simulation in cubic lattices. The Lebwohl-Lasher (LL) nematogen potential was employed as the prototype of the nematic interaction between nearest-neighbor rodlike molecules. It has been found that the director configurations of nematic droplets change with the mode and strength of the interfacial interaction as well as temperature. Further description is given of the restructuring processes of spheric and elliptic nematic droplets subjected to different strengths of external fields. These results are, hence, helpful for understanding the display mechanism of polymer dispersed liquid crystal materials. The studies also demonstrate that Monte Carlo simulation based on LL model is an effective method for investigating the physics in the small systems of liquid crystal under confined geometries.
基金
Project supported by the National Natural Science Foundation of China
the Trans-Century-Talent Foundation of the State Education Commission of China
the Science and Technology Foundation of Shanghai
