Observation of Two-Dimensional Hexatic Behavior in Free-Standing Liquid-Crystal Thin Films
- 1 August 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 61 (5), 550-553
- https://doi.org/10.1103/physrevlett.61.550
Abstract
Bond-orientational ordering in the hexatic- phase of free-standing liquid-crystal films of two to six molecular layers has been studied quantitatively with electron diffraction. By examination of the scaling relation among the -fold bond-orientational order parameters, it is demonstrated that the two-layer film exhibits truly two-dimensional hexatic behavior. A departure from two-dimensional behavior is observed in the thicker films.
Keywords
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