Pseudo-lattice vibration in smectic liquid crystals

  • Nakayama H
  • Minagawa Y
  • Yajima S
 et al. 
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Molecular motion in liquid-crystal phases of 4-octyl-4′-cyanobipheny (8CB) was studied with low-frequency Raman scattering and X-ray diffraction. A definite Raman band was found for the smectic phase with a peak at 9 cm-1. This band is assigned to the intermolecular vibration in the smectic layers with bimolecular structure, and is considered to indicate the existence of pseudo-lattice vibrations propagating along the direction perpendicular to the smectic layers.

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  • Hideyuki Nakayama

  • Yukiko Minagawa

  • Sachiko Yajima

  • Takashi Hyuga

  • Kikujiro Ishii

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