Characteristic Pressure Dependence of Spontaneous Polarization in Ferroelectric Liquid Crystal

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概要

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• The spontaneous polarization and rotational viscosity of the $c$-director of the ferroelectric liquid crystal 4$'$-octyloxy-biphenyl-4-carboxylic acid 4-(1-methyl-heptyloxy)-phenyl ester at various pressures were investigated. Spontaneous polarization as a function of $T-T_{\text{CA}}( p)$ decreased markedly when pressure was changed from 0.1 to 20 MPa and was independent of pressure as pressure was further increased. Rotational viscosity decreased when pressure was applied. These results suggest that the conformation of liquid crystal molecules changes at pressures below 20 MPa.

• 2008-09-25

著者

• Uehara Hiroyuki

  Division of General Education, Aichi Gakuin University, Nisshin, Aichi 470-0195, Japan

関連論文

• Influence of Optical Purity on Stability of Chiral Smectic-C Phase in Antiferroelectric Liquid Crystal under Pressure
• Characteristic Pressure Dependence of Spontaneous Polarization in Ferroelectric Liquid Crystal
• Pressure–Temperature Phase Diagram of Antiferroelectric Liquid Crystal

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