Dielectric and Flexoelectric Responses of Nematic Liquid Crystals on Circularly Orientating Patterns

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概要

• 論文の詳細を見る

• We fabricated circularly orientating alignment patterns, in which nematic liquid crystals align concentrically, on the uniformly rubbed layer. Texture indicated disclination perpendicularly to the rubbing for radial alignment and parallel for tangential. Shape and direction of the disclination were changed by the strength and frequency of in-plane electric field. The change was proportional to the strength. The response up to several tens Hz was asymmetric to the electric polarity. Above this frequency, the response was symmetric and only strength dependent. We attribute the asymmetric response to both flexoelectric and dielectric effect, and symmetric response to the dielectric effect alone.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2007-04-15

著者

• Kim Jong-hyun

  Physics And Institute Of Quantum Systems Chungnam National University

• Yokoyama Hiroshi

  Yokoyama Nano-structured Liquid Crystal Project Erato Japan Science And Technology Corporation

• Kim Jong-Hyun

  Physics and Institute of Quantum Systems, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, Korea

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