Direct Evidence for the Absence of 1/ω Type Anomalous Frequency Dependence of the Shear Viscosities of Smectic-A Liquid Crystals

1 March 1988

journal article
Published by IOP Publishing in Japanese Journal of Applied Physics

Vol. 27 (3A) , L273
https://doi.org/10.1143/jjap.27.l273

Abstract

By measuring the shear mechanical transfer function of the smectic-A phases of octylcyanobiphenyl (8CB) and octyloxycyanobiphenyl (8OCB) in the low frequency range from 1 Hz to 1 kHz, it was demonstrated directly that the Martin-Parodi-Pershan shear viscosities η₂ and η₃ of smectic-A liquid crystals do not diverge as 1/ω at low frequencies ω contrary to the case of bulk viscosities.

Keywords

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