±1/2 wedge disclinations stabilized by a sinusoidal boundary in a thin hybrid nematic liquid-crystal film

Takuya Ohzono, Jun Ichi Fukuda, Kosuke Suzuki, Tomohiko Yamaguchi

研究成果: ジャーナルへの寄稿学術誌査読

16 被引用数 (Scopus)

抄録

As an interesting example of how geometry affects the formation of defects, we study the defect structures of a hybrid nematic liquid-crystal film in a wedge-shaped cell made up of sinusoidal microwrinkles and an elastomer sheet. When the cell thickness is larger than a threshold value h c, +1/2 and -1/2 disclinations are simultaneously stabilized along concave grooves and convex crests, respectively. A simple theoretical analysis gives a good estimate of h c. The disclinations also show alternating optical rotations resulting from the curved boundary and liquid-crystal elastic anisotropy.

本文言語英語
論文番号030701
ジャーナルPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
86
3
DOI
出版ステータス出版済み - 9月 28 2012
外部発表はい

All Science Journal Classification (ASJC) codes

  • 統計物理学および非線形物理学
  • 統計学および確率
  • 凝縮系物理学

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