Scanning tunneling microscopy and inelastic electron tunneling spectroscopy studies of methyl isocyanide adsorbed on Pt(111)

Satoshi Katano, Yousoo Kim, Masafumi Hori, Michael Trenary, Maki Kawai

研究成果: Conference article査読

3 被引用数 (Scopus)

抄録

A low-temperature scanning tunneling microscope (STM) was used to investigate the adsorption state of a single methyl isocyanide (MeNC) molecule on the Pt(111) surface at 4.7 K. We found that MeNC was resolved as a round-shaped protrusion in the STM image. The STM image of paired MeNC is highly protruded in comparison with that of isolated MeNC due to the charge transfer from Pt to MeNC. Inelastic electron tunneling spectroscopy with the STM system (STM-IETS) was also employed in order to reveal the adsorption state of individual MeNC molecules on Pt(111). The STM-IETS spectrum of MeNC exhibits peaks at 8, 48 and 375 mV. Referring to the vibrational spectra reported previously, we assigned these peaks to the frustrated translation mode, PtC stretching mode and CH3 stretching mode, respectively. The absence of other vibrational modes could be due to a reduction of the elastic tunneling current.

本文言語English
論文番号012003
ジャーナルJournal of Physics: Conference Series
235
1
DOI
出版ステータスPublished - 2010
外部発表はい
イベントInternational Workshop on Electronic Spectroscopy for Gas-phase Molecules and Solid Surfaces, IWES2009 - Matsushima, Japan
継続期間: 2009 10月 122009 10月 15

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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