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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2019, 19 (2), 69—75. DOI: 10.18083/LCAppl.2019.2.69
Photon Correlation Spectroscopy for Investigation of Viscous-Elastic Properties of Shock-Free Ferroelectric Liquid Crystal
G. I. Maksimochkin1, D. V. Shmeliova1, S. V. Pasechnik1, E. P. Pozhidaev2,
S. S. Kharlamov1, A. A. Konovalova1
Author affiliations 1Problem Laboratory of Molecular Acoustics, Russian Technological University,
78 Vernadsky Av., Moscow, 119454, Russia E-mail: s–p–a–s–email@example.com 2P.N. Lebedev Physical Institute, 53 Leninsky Pr., Moscow, 119991, Russia
Abstract 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.