Record Details

Title:
Analysis of the shape of x-ray diffraction peaks originating from the hexatic phase of liquid crystal films
Affiliation(s):
XFEL.EU staff, Other
Topic:
Scientific area:
Abstract:
X-ray diffraction studies of the bond-orientational order in the hexatic-B phase of 75OBC and 3(10)OBC compounds are presented. The temperature evolution of an angular profile of a single diffraction peak is analyzed. Close to the hexatic-B–smectic-A transition these profiles can be approximated by the Gaussian function. At lower temperatures in the hexatic-B phase the profiles are better fitted by the Voigt function. Theoretical analysis of the width of diffraction peaks in three-dimentional (3D) hexatics is performed on the basis of the effective Hamiltonian introduced by Aharony and Kardar. Theoretical estimations are in good agreement with the results of x-ray experiments.
Imprint:
Taylor & Francis, 2017
Journal Information:
Molecular Crystals and Liquid Crystals, 647 (1), 169-178 (2017)
External related publications:
Language(s):
English


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 Record created 2018-07-12, last modified 2018-07-12

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