Acoustic Detection of a Propagating Shear Wave in a Smectic-Liquid Crystal
- 30 March 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 46 (13) , 828-831
- https://doi.org/10.1103/physrevlett.46.828
Abstract
The propagating shear wave ("second sound") in a smectic- 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- liquid crystal.
Keywords
This publication has 7 references indexed in Scilit:
- Hydrodynamic theory near the nematic-smectic-transitionPhysical Review A, 1979
- Pretransitional mechanical effects in a smectic-liquid crystalPhysical Review A, 1976
- Light-Scattering Study of a Smectic-Phase near the Smectic-- Nematic TransitionPhysical Review Letters, 1976
- Anisotropic Ultrasound Propagation in a Smectic-Liquid CrystalPhysical Review Letters, 1973
- Brillouin Scattering from Smectic Liquid CrystalsPhysical Review Letters, 1973
- Unified Hydrodynamic Theory for Crystals, Liquid Crystals, and Normal FluidsPhysical Review A, 1972
- Hydrodynamics of Liquid CrystalsPhysical Review Letters, 1971