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Nature of a nematic--smectic-A--smectic-C multicritical point

Journal Article · · Phys. Rev. Lett.; (United States)

Recent x-ray data on the angles and 2-theta shifts in the smectic-C phase of a binary liquid-crystal mixture were analyzed via a mean-field theory. We demonstrated that the smectic-A--smectic-C transitions (AC) are mean-field--like. This conclusion is consistent with recent heat-capacity data along the AC transition line. Furthermore, the nematic--smectic-A--smectic-C point in this binary mixture system is found to be in the vicinity of the tricritical point along the AC and nematic--smectic-C transition line.

Research Organization:
School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455
OSTI ID:
5769564
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 47:26; ISSN PRLTA
Country of Publication:
United States
Language:
English

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