3B11 無閾反強誘電性を示す液晶のスイッチング特性と界面の影響

概要

論文の詳細を見る
Ordinary antiferroelectric liquid crystals(AFLCs) are characterized by tristable switching with DC threshold and hysteresis. Recently, however, some apparently antiferroelectric liquid crystals were reported to show thresholdless V-shaped switching properity. In this study, we investigate the one component of the mixture (&chemical formula;) with V-shaped switching. We observed the switching properties under various conditions; various frequencies, temperatures and surfaces. In all the cells, the threshlod value tends to decrease as the temperature approachs the phase transition temperature. In addition, the material exhibits the V-shaped switching in the vicinity of the phase transition (SmC_A^* - SmC^*) temperature in some cases. And in most cells, the threshold value appears in the very low frequency. In the temperature gradient cell with the surface of polyimide, however, threshold value disappears and the switching property is ferrielectric-like.
日本液晶学会の論文
1996-09-30