Photon Correlation Spectroscopy for Investigation of Viscous-Elastic Properties of Shock-Free Ferroelectric Liquid Crystal

Photon correlation spectroscopy was applied for the first time to study viscous-elastic properties of ferroelectric liquid crystal showing relatively high fluidity in smectic C* phase (shock-free FLC). The spectral analysis of correlation functions made it possible to calculate viscous-elastic ratios defining dynamics of Goldstone mode of director’s fluctuations. The obtained results were discussed taking into account the data on elastic and viscous parameters derived from independent experiments.

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