Inelastic photoemission due to scattering by surface adsorbate vibrations

Ryuichi Arafune; Kei Hayashi; Shigenori Ueda; Yoichi Uehara; Sukekatsu Ushioda

doi:10.1103/PhysRevLett.95.207601

Inelastic photoemission due to scattering by surface adsorbate vibrations

Ryuichi Arafune, Kei Hayashi, Shigenori Ueda, Yoichi Uehara, Sukekatsu Ushioda

ENG - Applied Physics

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

By measuring the very low energy photoemission spectra of the CO/Cu(001) surface with a high resolution, we have found the energy loss components due to inelastic scattering of electrons near the Fermi level by the CO vibrational modes. The main energy loss structure appears as a step at 254 meV below the Fermi edge for C12O16. An isotope shift of the step to 240 meV was observed when C13O18 was adsorbed. This observation confirms that this step arises from the energy loss of photoelectrons near the Fermi level through the excitation of the C-O stretching mode.

Original language	English
Article number	207601
Journal	Physical Review Letters
Volume	95
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.95.207601
Publication status	Published - 2005 Nov 11

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10.1103/PhysRevLett.95.207601

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AU - Hayashi, Kei

AU - Ueda, Shigenori

AU - Uehara, Yoichi

AU - Ushioda, Sukekatsu

PY - 2005/11/11

Y1 - 2005/11/11

N2 - By measuring the very low energy photoemission spectra of the CO/Cu(001) surface with a high resolution, we have found the energy loss components due to inelastic scattering of electrons near the Fermi level by the CO vibrational modes. The main energy loss structure appears as a step at 254 meV below the Fermi edge for C12O16. An isotope shift of the step to 240 meV was observed when C13O18 was adsorbed. This observation confirms that this step arises from the energy loss of photoelectrons near the Fermi level through the excitation of the C-O stretching mode.

AB - By measuring the very low energy photoemission spectra of the CO/Cu(001) surface with a high resolution, we have found the energy loss components due to inelastic scattering of electrons near the Fermi level by the CO vibrational modes. The main energy loss structure appears as a step at 254 meV below the Fermi edge for C12O16. An isotope shift of the step to 240 meV was observed when C13O18 was adsorbed. This observation confirms that this step arises from the energy loss of photoelectrons near the Fermi level through the excitation of the C-O stretching mode.

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Inelastic photoemission due to scattering by surface adsorbate vibrations

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