Liquid Crystals: A Fluid Liquid‐Crystal Material with Highly Polar Order (Adv. Mater. 43/2017)
Hiroya Nishikawa(Kyushu University), Kazuya Shiroshita(Kyushu University), Hiroki Higuchi(Kyushu University), Yasushi Okumura(Kyushu University), Yasuhiro Haseba(JNC (Japan)), Shin‐ichi Yamamoto(JNC (Japan)), Koki Sago(JNC (Japan)), Hirotsugu Kikuchi(Kyushu University)
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Abstract
A calamitic-liquid-crystal compound with 1,3-dioxane and fluorinated aryl units exhibits a highly polar and fluid mesophase (MP phase) in which anomalously large dielectric permittivity (>10 000), ferroelectric-like polarization switching, and second-harmonic generation are observed by Hiroya Nishikawa, Hirotsugu Kikuchi, and co-workers in article number 1702354. The experimental data clearly shows that a unidirectional ferroelectric-like polar order is generated along the director, although there is no layer structure.
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