Electrooptic Observation of the Goldstone and Soft Modes near the SmA-SmC_A^* Phase Transition
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概要
- 論文の詳細を見る
In order to investigate the details of the molecular fluctuation behavior around the SmA-SmC_A^* phase transition point, we have carried out electrooptic measurements in 4-(1-trifluoromethvlheptyloxy-carbonyl) phenyl-4'-octyloxybiphenyl-4-carboxylate, which undergoes a phase transition directly from SmA to SmC_A^*, as functions of temperature and frequency. The relaxation due to the Goldstone mode was clearly observed in the SmC_A^* phase. We found that the optical signal due to the Goldstone mode vanishes at a certain temperature in the antiferroelectric SmC_A^* phase. The helix distortion due to the antiferroelectric Goldstone mode excited by an electric field is discussed.
- 東京工芸大学の論文
- 1997-01-31
著者
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UEMATSU Yoshiko
Department of Applied Chemistry, Tokyo Institute of Polytechnics
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HIRAOKA Kazuyuki
Tokyo Institute of Polytechnics
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UEMATSU Yoshiko
Tokyo Institute of Polytechnics
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