Scanning tunneling microscope observation of a polar liquid crystal and its computer simulation

Kazumi Matsushige, Seiji Taki, Hirotaka Okabe, Yasuo Takebayashi, Kouichi Hayashi, Yuji Yoshida, Toshihisa Horiuchi, Kazuhiro Hara, Kenji Takehara, Kazuaki Isomura, Hiroshi Taniguchi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The scanning tunneling microscope (STM) constructed in the laboratory was utilized to observe the molecular arrangement of a new type of liquid crystalline molecule, 5-(p-dodecyloxyphenyl)pyrazine-2-carbonitrile (DOPPC), which has large dipole moments along the molecular axis. The DOPPC molecules adsorbed on a graphite substrate showed several different STM images with regular two-dimensional molecular arrays. They revealed a novel inter-digitated double-row structure, differing from the single-row and the double-row structures proposed for the STM images of cyanobiphenyl liquid crystals. Moreover, a computer calculation was conducted based on electrostatic multipole-multipole interaction and simulated the most energetically preferable molecular arrangement, which agreed well with the observed STM image.

Original languageEnglish
Pages (from-to)1716-1721
Number of pages6
JournalJapanese Journal of Applied Physics
Volume32
Issue number4 R
DOIs
Publication statusPublished - Jan 1 1993

Fingerprint

Liquid crystals
Microscopes
computerized simulation
liquid crystals
microscopes
Scanning
scanning
pyrazines
Computer simulation
multipoles
Molecules
Dipole moment
molecules
Electrostatics
Graphite
dipole moments
graphite
electrostatics
Crystalline materials
Liquids

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Matsushige, K., Taki, S., Okabe, H., Takebayashi, Y., Hayashi, K., Yoshida, Y., ... Taniguchi, H. (1993). Scanning tunneling microscope observation of a polar liquid crystal and its computer simulation. Japanese Journal of Applied Physics, 32(4 R), 1716-1721. https://doi.org/10.1143/JJAP.32.1716

Scanning tunneling microscope observation of a polar liquid crystal and its computer simulation. / Matsushige, Kazumi; Taki, Seiji; Okabe, Hirotaka; Takebayashi, Yasuo; Hayashi, Kouichi; Yoshida, Yuji; Horiuchi, Toshihisa; Hara, Kazuhiro; Takehara, Kenji; Isomura, Kazuaki; Taniguchi, Hiroshi.

In: Japanese Journal of Applied Physics, Vol. 32, No. 4 R, 01.01.1993, p. 1716-1721.

Research output: Contribution to journalArticle

Matsushige, K, Taki, S, Okabe, H, Takebayashi, Y, Hayashi, K, Yoshida, Y, Horiuchi, T, Hara, K, Takehara, K, Isomura, K & Taniguchi, H 1993, 'Scanning tunneling microscope observation of a polar liquid crystal and its computer simulation', Japanese Journal of Applied Physics, vol. 32, no. 4 R, pp. 1716-1721. https://doi.org/10.1143/JJAP.32.1716
Matsushige, Kazumi ; Taki, Seiji ; Okabe, Hirotaka ; Takebayashi, Yasuo ; Hayashi, Kouichi ; Yoshida, Yuji ; Horiuchi, Toshihisa ; Hara, Kazuhiro ; Takehara, Kenji ; Isomura, Kazuaki ; Taniguchi, Hiroshi. / Scanning tunneling microscope observation of a polar liquid crystal and its computer simulation. In: Japanese Journal of Applied Physics. 1993 ; Vol. 32, No. 4 R. pp. 1716-1721.
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