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Updated: Aug 23, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Splayed polarization in the ferroelectric phase of a bent-core liquid crystal as studied by optical second-harmonic
Fumito Araoka1, Hajime Hoshi, Hideo Takezoe
1Department of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan.
Abstract:
Splayed polarization orientation has been confirmed in the anticlinic ferroelectric phase of a bent-core liquid crystal containing chiral end chains, P-8 -OPIMB6(*), by optical second-harmonic generation (SHG). The in-plane anisotropy of the SHG signal exhibits an unusual six-peak pattern under the rotation of parallel polarizers in the absence of an electric field, while a usual four-peak pattern simulatable using a uniform molecular orientation model is observed under a field. The unusual pattern was explained by considering a splayed polarization orientation including the effect of polarization charges.
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