Transition of frustrated nematic order and fluctuation of topological defects in microwrinkle grooves

Takuya Ohzono, Junichi Fukuda

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)11552-11556
Number of pages5
JournalSoft Matter
Volume8
Issue number45
DOIs
Publication statusPublished - Dec 7 2012

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grooves
Liquid Crystals
Defects
defects
liquid crystals
Nematic liquid crystals
Defect structures
Colloids
Elastic constants
Temperature
Boundary conditions
organizing
colloids
elastic properties
boundary conditions
temperature dependence
temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Transition of frustrated nematic order and fluctuation of topological defects in microwrinkle grooves. / Ohzono, Takuya; Fukuda, Junichi.

In: Soft Matter, Vol. 8, No. 45, 07.12.2012, p. 11552-11556.

Research output: Contribution to journalArticle

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