X-Ray Scattering from Liquid Crystals. I. Cholesteryl Nonanoate and Myristate
- 1 September 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 6 (3), 936-947
- https://doi.org/10.1103/physreva.6.936
Abstract
X-ray scattering intensities from unoriented samples of cholesteryl nonanoate and myristate are reported for several temperatures in the smectic , cholesteric, and isotropic liquid phases. The measured Bragg-scattering intensities from the smectic planes are used to test a recent theoretical model of the smectic phase. Strong pretransition scattering (short-range-order or order-parameter fluctuations) are observed in the cholesteric phase and a Landau theory is constructed to describe this effect.
Keywords
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