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Updated: Jul 4, 2026
Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy
Published on: May 27, 2018
Inelastic electron tunneling spectroscopy of an alkanethiol self-assembled monolayer using scanning tunneling
Norio Okabayashi1, Youhei Konda, Tadahiro Komeda
1Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, 980-0877, Japan.
Abstract:
We report inelastic electron tunneling spectroscopy (IETS) of a C8 alkanethiol self-assembled monolayer using a scanning tunneling microscope (STM). High-resolution STM IETS spectra show clear features of the C-H bending and C-C stretching modes in addition to the C-H stretching mode, which enables a precise comparison with previously reported vibrational spectroscopy, especially electron energy loss spectroscopy data. Intensity variation of vibrational peaks with tip position is discussed with the STM IETS detection mechanism.
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