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A Comparison of the Reflection -Absorption Infrared Method with the Electron Energy Loss Method for Studying Vibrations at Surfaces

  • Robert G. Greenler

Abstract

Our original insight into the geometric structure of molecules resulted from an understanding of their infrared absorption spectra, which was interpreted in terms of the vibrations and rotations of the molecules. Although the vibrational spectra of molecules can be used for a wide variety of investigations, the primary information yielded by a spectrum concerns the geometric structure of the molecule and the nature of the bonds between the atoms. When we obtain the vibrational spectrum of molecules adsorbed on a solid surface, we obtain the same kind of information; but now the geometric structure includes the surface atoms to which the molecule is attached and we get information not only about the intramolecular bonds but also about the bonds between the adsorbed molecule and the surface atoms.

Keywords

Vibrational Spectrum Electron Energy Loss Spectroscopy Dipole Excitation Specular Direction Surface Selection Rule 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    The following reviews give a general description of the RAIR method: R.G. Greenler in CRC Critical Rev. Solid State Sci. 4, 415 (1974).Google Scholar
  2. J. Pritchard in Dechema-Monographien, Moderne Verfahren der Oberflächenanalyse 78, 231 (1975).Google Scholar
  3. H.G. Tompkins in Methods of Surface Analysis, Vol. 1, Methods and Phenomena p. 472 (Elsevier, 1975 ).Google Scholar
  4. J. Pritchard and T. Catterick in Experimental Methods in Catalytic Research 3, 281 (1976).Google Scholar
  5. M.J. Dignam and J. Fedyk, Appl. Spectrosc. Rev. 14, 249 (1979).CrossRefGoogle Scholar
  6. 2.
    H.A. Pearce, N. Sheppard, Surface Sci. 59, 205 (1976).CrossRefGoogle Scholar
  7. 3.
    H. Froitzheim, “Electron Energy Loss Spectroscopy in Electron Spectroscopy for Surface Analysis” ed. by H. Ibach (Springer Verlag, 1977 ).Google Scholar
  8. 4.
    H. Ibach, H. Hopster, B.A. Sexton, Appl. Surf. Sci. 1, 1 (1977).CrossRefGoogle Scholar
  9. 5.
    W. Ho, R.F. Willis, E.W. Plummer, Phys. Rev. Lett. 40, 1463 (1978).CrossRefGoogle Scholar
  10. S. Andersson, J.W. Davenport, Solid State Commun. 28, 677 (1978).CrossRefGoogle Scholar
  11. 6.
    J.W. Davenport, W. Ho, I.R. Schrieffer, Phys. Rev. B17, 3115 (1978).CrossRefGoogle Scholar
  12. C.H. Li, S.Y. Tong, D.L. Mills, Phys. Rev. B21, 3057 (1980).CrossRefGoogle Scholar
  13. 7.
    H. Ibach in Conference Proceedings of Vibrations in Adsorbed Layers, held in Jülich, June 12–14, 1978, p. 64.Google Scholar
  14. 8.
    See papers by S. Lehwald and H. Ibach, and by S. Andersson in the Proceedings of this Conference.Google Scholar
  15. 9.
    See, for example: J.C. Campuzano, R.G. Greenler, Surface Sci. 83, 301 (1979).Google Scholar
  16. A.M. Bradshaw, F.M. Hoffmann, Surface Sci. 72, 513 (1978).CrossRefGoogle Scholar
  17. A. Crossley, D. King, Surface Sci. 95, 131 (1980).CrossRefGoogle Scholar
  18. P. Hollins, J. Pritchard, Surface Sci. 89, 486 (1979).CrossRefGoogle Scholar
  19. 10.
    H. Pfnür, D. Menzel, F.M. Hoffmann, A. Ortega, A.M. Bradshaw, Surface Sci. 93, 431 (1980).CrossRefGoogle Scholar
  20. 11.
    P. Hollins, J. Pritchard, J. Vac. Sci. Technol. 17, 665 (1980).CrossRefGoogle Scholar
  21. J.T. Yates, T.M. Duncan, S.D. Worley, R.W. Vaughan, J. Chem. Phys. 70, 1219 (1979).CrossRefGoogle Scholar
  22. 12.
    A.M. Bradshaw, F.M. Hoffmann, Surface Sci. 52, 449 (1975).CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1982

Authors and Affiliations

  • Robert G. Greenler
    • 1
  1. 1.Department of Physics and Laboratory for Surface StudiesUniversity of Wisconsin-MilwaukeeMilwaukeeUSA

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