Electrical properties of frustrated twisted grain boundary phases of liquid crystalline materials

M B Pandey, Ravindra Dhar

Abstract


An overview of characteristics physical properties of twisted grain boundary (TGB) phases shown by some of the chiral liquid crystalline materials is given. After a brief discussion of various liquid crystalline phases, structure of various types of TGB phases, their general behaviour along with optical textures and some other characteristics have been discussed. Finally, details about dielectric behaviour of TGB phases with static and dynamic measuring electric field are reported and discussed.

Keywords


TGB phases; chirality; smectic slabs; phase diagram; optical texture; Dielectric permittivity; Relaxation modes.

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