Dielectric relaxation modes in ferroelectric liquid crystal mixtures

Dielectric measurements in the frequency range 50 Hz to 1 MHz at varying bi as and temperatures have been carried out in three ferroelectric liquid cry stal mixtures in the SmC* and SmA phases aligned in planar orientation, The sample cells are in volume stabilized and surface stabilized geometry. Her e we report the observation of relaxation modes namely New Relaxation Mode "NRM", Surface Stabilized Domain Mode "SSDM" and Bulk Domain Mode "BDM". Th e relaxation frequency f(r) and dielectric strength Delta epsilon correspon ding to these modes has been evaluated.