Light-Scattering Study of Bond Orientational Order in a Tilted Hexatic Liquid-Crystal Film
- 7 December 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 59 (23) , 2682-2685
- https://doi.org/10.1103/physrevlett.59.2682
Abstract
We report a light-scattering study of the development of bond-orientational (BO) order in a thick, monodomain, freely suspended film. Our static results are consistent with a three-dimensional Landau free energy, and show an approximately linear increase of the BO elastic constant through the ordered phase. Our dynamic results show a hydrodynamic mode, which exhibits critical slowing down at the liquid to BO phase transition, and a nonhydrodynamic mode which is associated with the BO phase.Keywords
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