Abstract
We have investigated the behavior of interface between liquid crystal and isotropic phases to establish its control method. In our experiment two thermo modules are attached on the liquid crystal cell and the temperature of the cell is controlled to obtain both the liquid crystal and isotropic phases. By changing the temperature of the thermo modules, the area of the phases changes causing the movement of the interface between the phases. The moving velocity of the interface is measured as a function of the temperature of the thermo module, and the velocity increases with increasing temperature. The theoretical result with the Landau-deGennes free energy agreed with the experimental result.
