Orientational and positional order in a tilted hexatic liquid-crystal phase
- 7 July 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 57 (1), 98-101
- https://doi.org/10.1103/physrevlett.57.98
Abstract
We present a synchrotron-x-ray study of the smectic-C () and smectic-I () phase in a single-domain freely suspended film. Weak bond-orientational order in the phase evolves continuously into the phase so that the two phases are not thermodynamically distinct. From a Fourier analysis we obtain the hexatic order parameter , the coefficient of cos6χ. The higher &, with ≃n+0.3n(n-1), in agreement with a scaling theory.
Keywords
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