Measurement of Elastic Constant and Intrinsic Twist of Ferroelectric SmC^* Liquid Crystal
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概要
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The elastic constant B_3 and the intrinsic twist D of a ferroelectric SmC^* liquid crystal and their temperature dependences were measured by making use of the selective reflection in a homeotropically aligned cell, and the critical electric field E_c needed to unwind the helix was also estimated. E_c was much smaller than a critical electric field when the dechiralization lines disappear in a homogeneously aligned cell. The constants determined here are considered not to be influenced by the wall anchoring of the glass plate. When we apply a simple power law, α(1-T/T_c)^γ, to the temperature dependences of B_3, D and E_c, the exponents γ will be 0.44, 0.81 and 0.95, respectively, where T_c is the SmC^*-SmA transition point.
- 社団法人応用物理学会の論文
- 1990-02-20
著者
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AKAHANE Tadashi
Department of Electrical Engineering, Nagaoka University of Technology
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KAWAIDA Masahiro
Department of Otolaryngology, Ohtula Metropolitan Hospital
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Kawaida M
Department Of Electrical Engineering Faculty Of Engineering Nagaoka University Of Technology
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Kawaida Masahiro
Department Of Electrical Engineering Faculty Of Engineering Nagaoka University Of Technology
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Akahane Tadashi
Deparment Of Electrical Engineering Faculty Of Engineering The Technological University Of Nagaoka
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