- 著者
-
三宅 敢
中田 未知
高西 陽一
石川 謙
渡辺 順次
竹添 秀男
Lee C. H.
山本 隆一
- 出版者
- 日本液晶学会
- 雑誌
- 日本液晶学会討論会講演予稿集
- 巻号頁・発行日
- no.2002, pp.317-318, 2002-10-09
If the bent-core molecules exhibit nematic phases, they could have biaxiality due to their molecular shapes. Recently a liquid crystal material containing a thiazole unit as a central core was synthesized and found to exhibit an interesting nematic phase. Under an optical microscope, the Schlieren textures were observed in the nematic phase of a homeotropically aligned cell. In the nematic phase range, we observed a spontaneous orientational change associated with characteristic texture changes, which may provide the information of the nature of the nematic phase. Two reflections were observed at a small angle corresponding to a layer periodicity even in the nematic phase, suggesting the existence of a cybotactic formation of the layer structure. In aligned samples, each peak splits into two. Based on these experimental observations, the possible existence of the biaxial nematic phase will be discussed.