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Recently synthesized antiferroelectric liquid crystal 1H6Bi shows special optical properties related to change in handedness of the ferroelectric helix. The broadband dielectric measurements of this compound has been carried out, a number of dielectric relaxation modes corresponding to various temperatures and LC phases have been detected. The characteristic parameters of these modes are presented...
Recently synthesized an antiferroelectric liquid crystal compound has been studied by means of dielectric spectroscopy. The dielectric measurements were curried out in a cell with gold electrodes at planar orientation. The characteristics of dielectric relaxation modes in all phases existing in the investigated compound are presented.
The dielectric spectroscopy, in frequency range 10-² ÷ 105 HZ, was used to obtained the dielectric characteristics of chloride analogous well know MHPOBC antiferroelectric liquid crystal compound. This compound have a rich phase sequence antiferroelectric, ferroelectric, SmA phases and SmC*α, SmC*γ subphases. One molecular and one collective molecular motion were observed and analysed.
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