The nematic-isotropic and the nematic-to-lamellar phase changes in the lyotropic liquid crystal formed by decylammonium chloride micelles in a water-ammonium chloride solution have been studied by light scattering. The former transition shows behavior identical to that observed in thermotropic liquid crystals. The nematic-lamellar transition appears closely similar to a thermotropic nematic-smectic-A change and the elastic constants diverge according to the analogy to superfluid helium and the three-dimensional xy model.
Physical Review Letters
Kumar, Satyendra; Yu, L. J.; Litster, J. D. (1983). Orientational Fluctuations of a Lyotropic Nematic Liquid Crystal Measured by Quasielastic Light Scattering. Physical Review Letters 50(21) 1672-1675. doi: 10.1103/PhysRevLett.50.1672. Retrieved from https://oaks.kent.edu/article/orientational-fluctuations-lyotropic-nematic-liquid-crystal-measured-quasielastic-light