日本液晶学会討論会講演予稿集
Online ISSN : 2432-5988
Print ISSN : 1880-3490
ISSN-L : 1880-3490
2021年日本液晶学会討論会
セッションID: 1CO4
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らせん軸と平⾏な熱流下におけるコレステリック液晶滴の剛体回転
*西山 活坊野 慎治丸山 雄司髙野 俊輔多辺 由佳
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Droplets of cholesteric liquid crystals coexisting with their isotropic phase are known to exhibit unidirectional steady change in their textures when subjected to a heat flux. Although the observation under a polarizing microscope is quite clear, it is still controversial whether the textural change is ascribed to rigid-body rotation of the droplet or pure director rotation. In this study, detecting the flow field, we confirmed the rigid-body rotation of the droplets even when the helical axis is parallel to the heat flux. Considering the ratio of the surface anchoring and the Frank elasticity and that of the elasticity and the Lehmann torque, we gave a reasonable explanation why the rigid-body rotation should be chosen.

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