Detection of the frustrated rotation mode of CO on Cu(0 0 1) by very low energy photoelectron spectroscopy

R. Arafune; K. Hayashi; S. Ueda; Y. Uehara; S. Ushioda

doi:10.1016/j.susc.2006.01.058

Detection of the frustrated rotation mode of CO on Cu(0 0 1) by very low energy photoelectron spectroscopy

R. Arafune, K. Hayashi, S. Ueda, Y. Uehara, S. Ushioda

ENG - Applied Physics

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

6 Citations (Scopus)

Abstract

We have measured the very low energy photoelectron spectra of the clean and CO covered Cu(0 0 1) surfaces at low temperature (15 K). A step at 34.5 meV below the Fermi level appeared in the CO/Cu(0 0 1) spectra, while no structure was found at the same position in the clean Cu(0 0 1) spectrum. Furthermore, we have succeeded in measuring the spectral shift of the step to 33.2 meV below the Fermi level by isotopic substitution of the CO molecule. We have concluded that this step originates from the inelastic scattering of photoelectrons through excitation of the frustrated rotation mode of the CO molecule.

Original language	English
Pages (from-to)	3536-3539
Number of pages	4
Journal	Surface Science
Volume	600
Issue number	18
DOIs	https://doi.org/10.1016/j.susc.2006.01.058
Publication status	Published - 2006 Sept 15

Keywords

Carbon monoxide
Copper
Inelastic scattering
Low index single crystal surface
Molecular vibration
Photoelectron spectroscopy
Photoemission

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10.1016/j.susc.2006.01.058

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title = "Detection of the frustrated rotation mode of CO on Cu(0 0 1) by very low energy photoelectron spectroscopy",

abstract = "We have measured the very low energy photoelectron spectra of the clean and CO covered Cu(0 0 1) surfaces at low temperature (15 K). A step at 34.5 meV below the Fermi level appeared in the CO/Cu(0 0 1) spectra, while no structure was found at the same position in the clean Cu(0 0 1) spectrum. Furthermore, we have succeeded in measuring the spectral shift of the step to 33.2 meV below the Fermi level by isotopic substitution of the CO molecule. We have concluded that this step originates from the inelastic scattering of photoelectrons through excitation of the frustrated rotation mode of the CO molecule.",

keywords = "Carbon monoxide, Copper, Inelastic scattering, Low index single crystal surface, Molecular vibration, Photoelectron spectroscopy, Photoemission",

author = "R. Arafune and K. Hayashi and S. Ueda and Y. Uehara and S. Ushioda",

year = "2006",

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doi = "10.1016/j.susc.2006.01.058",

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TY - JOUR

T1 - Detection of the frustrated rotation mode of CO on Cu(0 0 1) by very low energy photoelectron spectroscopy

AU - Arafune, R.

AU - Hayashi, K.

AU - Ueda, S.

AU - Uehara, Y.

AU - Ushioda, S.

PY - 2006/9/15

Y1 - 2006/9/15

N2 - We have measured the very low energy photoelectron spectra of the clean and CO covered Cu(0 0 1) surfaces at low temperature (15 K). A step at 34.5 meV below the Fermi level appeared in the CO/Cu(0 0 1) spectra, while no structure was found at the same position in the clean Cu(0 0 1) spectrum. Furthermore, we have succeeded in measuring the spectral shift of the step to 33.2 meV below the Fermi level by isotopic substitution of the CO molecule. We have concluded that this step originates from the inelastic scattering of photoelectrons through excitation of the frustrated rotation mode of the CO molecule.

AB - We have measured the very low energy photoelectron spectra of the clean and CO covered Cu(0 0 1) surfaces at low temperature (15 K). A step at 34.5 meV below the Fermi level appeared in the CO/Cu(0 0 1) spectra, while no structure was found at the same position in the clean Cu(0 0 1) spectrum. Furthermore, we have succeeded in measuring the spectral shift of the step to 33.2 meV below the Fermi level by isotopic substitution of the CO molecule. We have concluded that this step originates from the inelastic scattering of photoelectrons through excitation of the frustrated rotation mode of the CO molecule.

KW - Carbon monoxide

KW - Copper

KW - Inelastic scattering

KW - Low index single crystal surface

KW - Molecular vibration

KW - Photoelectron spectroscopy

KW - Photoemission

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U2 - 10.1016/j.susc.2006.01.058

DO - 10.1016/j.susc.2006.01.058

M3 - Article

AN - SCOPUS:33748932692

SN - 0039-6028

VL - 600

SP - 3536

EP - 3539

JO - Surface Science

JF - Surface Science

IS - 18

ER -

Detection of the frustrated rotation mode of CO on Cu(0 0 1) by very low energy photoelectron spectroscopy

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