Simultaneous observation of molecular tilt and azimuthal angle distributions in spontaneously modulated liquid-crystalline langmuir monolayers

Yuka Tabe, Nan Shen, Eric Mazur, Hiroshi Yokoyama

研究成果: Article査読

45 被引用数 (Scopus)

抄録

We carried out the first quantitative measurements of correlated modulations of molecular tilt and azimuthal angles in two-dimensional smectic- C Langmuir monolayers using simultaneous linear- and circular-polarized reflected light microscopy. For spontaneously formed stripes and higher-order point defects, the tilt angle varies nearly sinusoidally at twice the spatial frequency of the azimuthal rotation. The tilt modulation grows as the second power of the modulation wave number and leads to a large escaped core for the point defect. Our results can be explained by an extended Landau theory of tilted smectics.

本文言語English
ページ(範囲)759-762
ページ数4
ジャーナルPhysical Review Letters
82
4
DOI
出版ステータスPublished - 1999
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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