Steady rigid-body rotation of cholesteric droplets and their dumbbell-shaped aggregates driven by heat flux along the helical axes

Katsu Nishiyama*, Shinji Bono, Yuka Tabe

*この研究の対応する著者

研究成果: Article査読

抄録

We investigated the steady unidirectional rotation of cholesteric (Ch) droplets driven by a heat flux. The droplets coexisted with the isotropic (Iso) phase and possessed a helical molecular arrangement. When a heat flux was transported along the helical axis, the droplets and their dumbbell-shaped aggregates exhibited steady rigid rotation. Our results are in contrast with those of previous reports in which Ch droplets in the same geometry exhibited pure director rotation. The fact that Ch droplets and their aggregates prefer rigid rotation can be ascribed to the orientational elasticity combined with the anchoring force at the Ch-Iso interface, which locks the director to the rotational flow in the droplets.

本文言語English
ページ(範囲)10818-10828
ページ数11
ジャーナルSoft Matter
17
48
DOI
出版ステータスPublished - 2021 12月 28

ASJC Scopus subject areas

  • 化学 (全般)
  • 凝縮系物理学

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