Flexoelectricity in chiral nematic liquid crystals as a driving mechanism for the twist-bend and splay-bend modulated phases

Vaupotic, Natasa and Čepič, Mojca and Osipov, Mikhail and Gorecka, Ewa (2014) Flexoelectricity in chiral nematic liquid crystals as a driving mechanism for the twist-bend and splay-bend modulated phases. Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 89 (3). 030501(R). ISSN 1063-651X

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Abstract

We present a continuum theoretical model describing the impact of chirality on nematic systems with large flexoelectricity. As opposed to achiral materials, where only one type of the modulated structure can exist in a given material, the model predicts that chirality can stabilize several modulated phases, which have already been observed experimentally