Mean Field Theory Of Ferroelectricity In Liquid Crystals

Using mean field potential containing the lowest symmetry allowed first rank,rnsecond rank and coupling of the two terms, we have studied the ferroelectricity inrnnematic liquid crystals. By taking various combinations of the terms, we haverndesigned a number of potential models and performed mean field calculations forrneach potential. The significance of a pure dipolar and coupling interaction terms arerninvestigated . The pure dipolar interaction term has been found to show morerninfluence than the coupling terms for the formation of ferroelectricity in nematicrnliquid crystal. Phase diagrams that show ferroelectric-nematic (FN ), nematic (N) andrnisotropic phases are produced for the various potential models

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