Orientational fluctuations in a two-dimensional smectic-C liquid crystal with variable density

Aryeh Feder, Yuka Tabe, Eric Mazur

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We studied orientational fluctuations in a smectic-C Langmuir monolayer. Our measurements of orientational correlations are in excellent agreement with theoretical predictions. In addition, we present the first measurements of orientational elasticity and viscosity in a two-dimensional system whose density can be varied. The orientational viscosity strongly depends on temperature and density, changing by more than an order of magnitude with a 2.5% increase in temperature or a 20% change in density. The orientational elasticity is only weakly dependent on temperature and density.

Original languageEnglish
Pages (from-to)1682-1685
Number of pages4
JournalPhysical Review Letters
Volume79
Issue number9
Publication statusPublished - 1997
Externally publishedYes

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liquid crystals
elastic properties
viscosity
monomolecular films
temperature
predictions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Orientational fluctuations in a two-dimensional smectic-C liquid crystal with variable density. / Feder, Aryeh; Tabe, Yuka; Mazur, Eric.

In: Physical Review Letters, Vol. 79, No. 9, 1997, p. 1682-1685.

Research output: Contribution to journalArticle

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