Acoustic detection of a propagating shear wave in a smectic-A liquid crystal

B. Y. Cheng*, Bimal K. Sarma, I. D. Calder, S. Bhattacharya, J. B. Ketterson

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

The propagating shear wave ("second sound") in a smectic-A liquid crystal was detected by an acoustic shear impedometric technique. The anisotropy of shear-wave velocity was determined, for the first time, in its entirety. The viscous-damped nature of the mode for propagation parallel and perpendicular to the normal to the smectic layer was also determined. The results confirm the predictions of the elasto-hydrodynamic theory of the smectic-A liquid crystal.

Original languageEnglish (US)
Pages (from-to)828-831
Number of pages4
JournalPhysical review letters
Volume46
Issue number13
DOIs
StatePublished - Jan 1 1981

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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