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 |
巻 | 252 |
号 | 12 |
DOI | |
出版ステータス | Published - 2006 4月 15 |
外部発表 | はい |
ASJC Scopus subject areas
- 化学 (全般)
- 凝縮系物理学
- 物理学および天文学(全般)
- 表面および界面
- 表面、皮膜および薄膜