Site selective inelastic electron tunneling spectroscopy probed by isotope labeling

Norio Okabayashi, Magnus Paulsson, Hiromu Ueba, Youhei Konda, Tadahiro Komeda

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

We study inelastic scattering in alkanethiol self-assembled monolayers using isotope labeling and unambiguously determine which molecular vibrations are active in the inelastic electron tunneling spectroscopy. The selective deuteration of the molecule also allows us to show that the different parts of the molecule contribute approximately equally to inelastic signal. Our first principles calculations confirm the experimental results and provide insights on electron transport through molecules.

Original languageEnglish
Pages (from-to)2950-2955
Number of pages6
JournalNano Letters
Volume10
Issue number8
DOIs
Publication statusPublished - 2010 Aug 11

Keywords

  • Inelastic electron tunneling spectroscopy
  • alkanethiol self-assembled monolayer
  • density functional theory
  • isotope labeling
  • nonequilibrium Green's function
  • scanning tunneling microscope

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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