Heat-driven rotation in cholesteric droplets with a double twisted structure

Fumiya Ito, Jun Yoshioka, Yuka Tabe

研究成果: Article査読

16 被引用数 (Scopus)

抄録

In an isotropic-cholesteric coexistence system, a single-helix structure is formed in the cholesteric droplets, and when a temperature gradient is applied, unidirectional rotations are induced in these droplets. However, in a previous work, we showed that a double twisted structure was also formed in the droplets by changing droplet size or chirality. In this paper, we find that unidirectional rotations are also induced by applying a temperature gradient to droplets with a double twisted structure. Here, however, the rotational behavior is strongly dependent on the relationship between the direction of the helical axis and the temperature gradient. Unidirectional rotation is induced when one of the helical axes is parallel to the gradient, whereas no rotation is found when all of the axes are perpendicular to the temperature gradient. These results suggest that the macroscopic helix plays a significant role in the heat-driven rotational dynamics of cholesteric droplets.

本文言語English
論文番号114601
ジャーナルjournal of the physical society of japan
85
11
DOI
出版ステータスPublished - 2016 11 15

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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