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Flexoelectricity versus Electrostatics in Polar Nematic Liquid Crystals

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arxiv 2408.10347 v1 pith:2IOUBQBC submitted 2024-08-19 cond-mat.soft

Lincoln Paik , Jonathan V. Selinger This is my paper
classification cond-mat.soft
keywords nematiccrystalselectrostaticsflexoelectricityliquidpolarbecauseconventional
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Polar nematic liquid crystals have two special features, compared with conventional nematic liquid crystals. First, because of flexoelectricity, the combination of polar order and splay reduces the free energy. Second, because of electrostatics, any splay generates a bound charge density, which increases the free energy. To assess the competition between these two effects, we develop a theory that combines flexoelectricity and electrostatics. The theory predicts a phase diagram that includes ferroelectric, antiferroelectric, and conventional nematic phases.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Splay Stiffening and Twist Softening in a Ferroelectric Nematic Liquid Crystal

    cond-mat.soft 2025-05 conditional novelty 5.0 of 10

    In a single material showing both ordinary and ferroelectric nematic phases, splay elasticity stiffens sharply in the polar phase while twist elasticity softens, consistent with electrostatic stiffening by polarizatio...

  2. The Interplay of Polar and Nematic Order in Active Matter: Implications for Non-Equilibrium Physics and Biology

    cond-mat.soft 2025-06 conditional novelty 2.0 of 10

    A review argues that polar and nematic order frequently coexist in active biological matter, so unified mixed-symmetry models are needed to describe it.

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