Abstract
The nonlinear coupling between the velocity field and the layer-displacement field leads to a radical breakdown of the conventional hydrodynamical theory for smectic- liquid crystals. Three of the five viscosities are found to diverge as for small frequencies with the result that the sound attenuation scales as (not as predicted by conventional hydrodynamics). It is also found that there is a simple relationship between the three diverging viscosities. Reanalysis of existing data appears to confirm the present prediction for the sound attenuation.
- Received 19 May 1982
DOI:https://doi.org/10.1103/PhysRevLett.49.51
©1982 American Physical Society