Dynamics of Freedericksz deformation near a nematic-smectic- transition

Cheng Cher Huang, Ronald S. Pindak, Philip J. Flanders, John T. Ho

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


We have used the dynamic Freedericksz-deformation method to measure in detail the temperature dependence of the twist viscosity γ1 in N-p-cyanobenzylidene-p-octyloxyaniline near the nematic-smectic-A transition. We have demonstrated that the intrinsic contribution γ10 can be determined independently by extrapolating data on doped samples. Our analysis shows γ1 to diverge with a critical exponent ζ=0.37±0.05, in agreement with theoretical expectations.

Original languageEnglish (US)
Pages (from-to)400-403
Number of pages4
JournalPhysical review letters
Issue number7
StatePublished - 1974

Bibliographical note

Funding Information:
Work supported in part by the Research Corporation.


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