Ellipsometric study of freely-suspended films of an antiferroelectric liquid crystal mixture showing V-shaped switching

Seiji Shibahara Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8552, Japan

Yoichi Takanishi Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8552, Japan

Ken Ishikawa Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8552, Japan

Hideo Takezoe Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8552, Japan

Abstract

Ellipsometric studies have been conducted on freely-suspended films of an antiferroelectric liquid crystal mixture showing V-shaped switching. We observed a discontinuous change of the phase difference between s- and p- components of transmitted light Δ, at 46 °C indicating a phase transition from smectic-C* to the ferrielectric phase, although this transition is continuous in conoscopic observation. We also discussed the details of A as a function of an applied electric field in each phase.

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Ellipsometric study of freely-suspended films of an antiferroelectric liquid crystal mixture showing V-shaped switching

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Ellipsometric study of freely-suspended films of an antiferroelectric liquid crystal mixture showing V-shaped switching

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