Tip-enhanced Raman scattering spectroscopy of nanometer-scale domains in Ni(110)-(2×1) O surface

Yuji Hirata, Kenji Sakamoto, Yoichi Uehara, Sukekatsu Ushioda

研究成果: Article査読

3 被引用数 (Scopus)

抄録

We have succeeded in detecting Raman scattered light from a monolayer-oxygen-covered domain with a nanometer-scale lateral extent in the Ni(110)-(2×1) O surface by tip-enhanced Raman scattering (TERS) spectroscopy. A mosaic of light and dark nanometer-size domains is observed in the scanning tunneling microscope (STM) image of the surface. In the TERS spectra taken when the STM tip was fixed over the dark domain, a peak that exceeded the uncertainty of the background signal level was observed at 30meV. This peak disappeared when the tip was moved over the light domain adjacent to the dark domain. Since the Raman shift energy agrees well with one of the vibrational energies of oxygen reported for the Ni(110)-(2×1) O surface, we conclude that only the dark domain is covered with oxygen atoms.

本文言語English
論文番号110206
ジャーナルJapanese journal of applied physics
48
11
DOI
出版ステータスPublished - 2009 12 1

ASJC Scopus subject areas

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

フィンガープリント 「Tip-enhanced Raman scattering spectroscopy of nanometer-scale domains in Ni(110)-(2×1) O surface」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル