摘要
采用自洽模拟方法，计算研究了分子层面内的静电场对ＳｍＣ相液晶螺旋结构和铁电特性的影响。结果表明，ＳｍＣ相液晶的螺距和极化强度平均值随场强增大而增大，且越接近阈值电场增大越快；指向矢倾斜角和分子取向序参量随场强增大而缓慢增大；阈值电场与液晶的本征螺距和自发极化强度有关，并随温度升高而减小。
The effect of static electric field in smectic layer plane on the helic structure and ferroelectrics of SmC * liquid crystals is studied by the self_consistent simulation method. The results show that the helic pitch and the average of polarization increase with field strength, the closer to the threshold field, the faster they increase, the tilt angle of director and molecular orientional order parameter increase slowly with field strength and the threshold field decreases with temperature and is related to the helic pitch and polarization without external field.
出处
《计算物理》
CSCD
北大核心
1999年第3期316-320,共5页
Chinese Journal of Computational Physics
基金
煤炭院校优秀青年科学基金
