Abstract
Abstract Measurements of the intensity and spectrum of light scattered by bend mode director fluctuations near the smectic-A to nematic phase transition of cyanobenzylidene octyloxyaniline are presented and analyzed. The longitudinal correlation length in the nematic phase appears to diverge (T- T)−0.75 and the data are consistent with the jahnig-Brochard scalilng function up to q∥ = 10. The bend viscosity diverges as (T - T) −0.5 when correction for beckground and Arrhenius temperature dependence are included.
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