Abstract
We report a dynamic light-scattering study of the fluctuation modes in a chiral smectic- $A$ liquid crystal, which exhibits a stable one-dimensional modulation of the layers. A novel, very low-frequency hydrodynamic mode is observed, which tends to restore the symmetry of flat layers. The nonhydrodynamic director fluctuation mode is also found to be anomalously slow. Each of these modes is split into two components. The experimental results are quantitatively explained by a continuum elastic theory of the modulated smectic structure.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
