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  • Title: Macroscopic description of the isotropic to antiferroelectric B(2) phase transition in banana-shaped liquid crystals.
    Author: Mukherjee PK.
    Journal: J Chem Phys; 2010 Jan 14; 132(2):024903. PubMed ID: 20095705.
    Abstract:
    We present a mean-field description of the phase transitions, which are obtained when cooling from the isotropic liquid to the first liquid crystalline phase in compounds composed of achiral banana-shaped molecules. We put special emphasis on the isotropic to antiferroelectric B(2) phase transition. The free energy is written in terms of the coupled order parameters including the antiferroelectric polarization. We present a detailed analysis of the different phases that can occur and analyze the question under which conditions a direct isotropic to antiferroelectric B(2) phase transition is possible when compared with other phase transitions. The theoretical results are found to be in qualitative agreement with all published experimental results.
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