抄録
We show that a nematic liquid crystal confined in sinusoidal microwrinkle grooves imposing antagonistic boundary conditions exhibits noteworthy structural transitions of nematic order and associated line defects under the variation of temperature (T). The defects also show unusual temperature-dependent fluctuations whose amplitude squared depends nonlinearly on T. The temperature dependence of the elastic constants of the liquid crystal and their ratio is responsible for these transitions and fluctuations. A variety of transformable defect structures with characteristic fluctuations will open up new possibilities for organizing and manipulating colloids and a liquid crystal confined in microwrinkle grooves could be a tangible one-dimensional model system to study the nature of fluctuations.
本文言語 | 英語 |
---|---|
ページ(範囲) | 11552-11556 |
ページ数 | 5 |
ジャーナル | Soft Matter |
巻 | 8 |
号 | 45 |
DOI | |
出版ステータス | 出版済み - 12月 7 2012 |
外部発表 | はい |
!!!All Science Journal Classification (ASJC) codes
- 化学 (全般)
- 凝縮系物理学