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Updated: Apr 19, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Predicting a polar analog of chiral blue phases in liquid crystals
Shaikh M Shamid1, David W Allender1, Jonathan V Selinger2
1Liquid Crystal Institute, Kent State University, Kent, Ohio 44242, USA and Department of Physics, Kent State University, Kent, Ohio 44242, USA.
Abstract:
In liquid crystals, if flexoelectric couplings between polar order and director gradients are strong enough, the uniform nematic phase can become unstable to the formation of a modulated polar phase. Previous theories have predicted two types of modulation: twist bend and splay bend; the twist-bend phase has been found in recent experiments. Here, we investigate other types of modulation, using lattice simulations and Landau theory. In addition to twist bend and splay bend, we also find polar blue phases, with 2D or 3D modulations of both the director and the polar order. We compare polar blue phases with chiral blue phases, and discuss opportunities for observing them experimentally.
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