Anomalous heat capacity above the isotropic-chiral-smectic-C phase transition.
A phenomenological model is developed to describe the isotropic-chiral-smectic-C phase transition. The anomalous part of the heat capacity of the chiral-smectic-C liquid crystals above the isotropic-chiral-smectic-C phase transition is calculated using Landau's fluctuation theory. The temperature dependence of the heat capacity above the transition point is calculated first for the Gaussian model and then taking the cubic and the quartic terms as a perturbation. The theoretical results are found to be in good agreement with experiment.
Mukherjee
Prabir K
PK
Department of Physics, Haldia Govt. College, P.O.-Debhog, Dist.-East Midnapore, 721657, India. pkmukherje@yahoo.co.in