Dynamic Studies Of Biphenyl Benzoate Ferroelectric Liquid Crystals release_im6afpdaozbbhlsteamboldiwq

by J Hemine, A Daoudi, C Legrand, A El Kaaouachi, A Nafidi, N Isaert, H Nguyen

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We present electro-optic and dynamic properties on three homologous of biphenyl benzoate series of ferroelectric liquid crystals (FLCs) exhibiting the chiral smectic C phase (SmC*). Dielectric spectroscopy was used to provide the dynamics and dipolar ordering of the ferroelectric phase. The Goldstone relaxation mode was studied for sample cells on planar geometry without a DC bias voltage. The rotational viscosity corresponding to molecular motions in the SmC* phase was determined from electro-optic and dielectric measurements. The Arrhenius-type behaviour of the rotational viscosity was found and the corresponding activation energies were evaluated.
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