Citation:
A. Feder, Y. Tabe, and E. Mazur. 1997. “Orientational Fluctuations in a Two-Dimensional Smectic-C Liquid Crystal with Variable Density.” Phys. Rev. Lett., 79, Pp. 1682–1685. Publisher's Version
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.See also: Peer Instruction