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

Aryeh Feder, Yuka Tabe, Eric Mazur

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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. 1997

Original languageEnglish
Pages (from-to)1682-1685
Number of pages4
JournalPhysical Review Letters
Issue number9
Publication statusPublished - 1997 Jan 1


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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