Terahertz dichroism of MBBA liquid crystal on rubbed substrate

Jun ichi Nishizawa, Tetsuya Yamada, Tetsuo Sasaki, Tadao Tanabe, Toshimasa Wadayama, Takenori Tanno, Ken Suto

研究成果: Article査読

17 被引用数 (Scopus)

抄録

Terahertz (THz) dichroism of a nematic liquid N-(p-methoxybenzylidene)-p-butylaniline (MBBA) was measured using a GaP Raman THz spectrometer. MBBA on a rubbed plastic substrate generates a band at around 4.0 THz: its liquid crystal phase shows strong dichroism, which well corresponds to that of the IR absorption caused by π(C{single bond}H) of MBBA molecule reported in the literature. Based on inferences drawn from the present THz and the published IR dichroic results, the 4.0 THz band probably stems from lateral intermolecular or intramolecular interactions of MBBA molecules aligned to the rubbing direction. The results clearly demonstrate that THz spectroscopy is powerful for discussing of phase transition and dichroism of liquid crystals.

本文言語English
ページ(範囲)4226-4229
ページ数4
ジャーナルApplied Surface Science
252
12
DOI
出版ステータスPublished - 2006 4 15
外部発表はい

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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