Advertisement

Elementary Processes of Surface Diffusion Studied by Quasielastic Helium Atom Scattering

  • Andrew P. Graham
  • Walter Silvestri
  • J. Peter Toennies
Part of the NATO ASI Series book series (NSSB, volume 360)

Abstract

The theory relating quasielastic helium atom scattering to surface diffusional dynamics is briefly reviewed. The experimental errors in the determination of the quasielastic broadening from experimental data are discussed and new results on the self-diffusion of nickel on Ni(110) are presented. The quasielastic data indicate that for temperatures between 800K and 1200K the nickel atoms diffuse by jumping between lattice sites. The activation barrier and pre-exponential factor are in good agreement with mass-transport experiments.

Keywords

Peak Width Activation Barrier Helium Atom Full Width Half Maximum Instrument Response 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R. Gomer, Rep. Prog. Phys. 53, 917 (1990).ADSCrossRefGoogle Scholar
  2. 2.
    J.W.M. Frenken and B.J. Hinch, Springer Series in Surface Sciences 27, 287 (1992).CrossRefGoogle Scholar
  3. 3.
    T. Springer, Springer Tracts in Modem Physics 64, Springer Berlin (1972).Google Scholar
  4. 4.
    M. Bèe, Quasielasiic Neutron Scattering published by Adam Hilgar, Bristol 1988.Google Scholar
  5. 5.
    L. van Hove, Phys. Rev. 95, 249 (1954).ADSMATHCrossRefGoogle Scholar
  6. 6.
    A.C. Levi, R. Spadacini and G.E. Tommei, Surf. Sci. 121, 504 (1982).ADSCrossRefGoogle Scholar
  7. 7.
    G.H. Vineyard, Phys. Rev. 110, 999 (1958).ADSCrossRefGoogle Scholar
  8. 8.
    A.P. Graham, F. Hofmann, J.P. Toennies, and J. Ellis, in preparation.Google Scholar
  9. 9.
    C.T. Chudley and R.J. Elliot, Proc. Phys. Soc. London 77, 353 (1961).ADSCrossRefGoogle Scholar
  10. 10.
    A.P. Graham, F. Hofmann, J.P. Toennies, L.Y. Chen, and S.C. Ying, submitted to Science..Google Scholar
  11. 11.
    J.P. Toennies, Springer Series in Surface Sciences 14, 248 (1988).CrossRefGoogle Scholar
  12. 12.
    A.P. Graham, F. Hofmann, and J.P. Toennies, in preparation.Google Scholar
  13. 13.
    J.W.M. Frenken, J.P. Toennies, and Ch. Wöll, Phys. Rev. Lett. 60, 1727 (1988).ADSCrossRefGoogle Scholar
  14. 14.
    J.W.M. Frenken, B.J. Hinch, and J.P. Toennies, Surf. Sci. 211/212, 21 (1989).CrossRefGoogle Scholar
  15. 15.
    J.W.M. Frenken, B.J. Hinch, J.P. Toennies, and Ch. Wöll, Phys. Rev. B41, 938 (1990).ADSGoogle Scholar
  16. 16.
    J. Ellis and J.P. Toennies, Phys. Rev. Lett. 70, 2118 (1993).ADSCrossRefGoogle Scholar
  17. 17.
    A.P. Graham, F. Hofmann, J.P. Toennies, L.Y. Chen, and S.C. Ying, to be submitted to Phys. Rev. B..Google Scholar
  18. 18.
    M. Bertino, A.P. Graham, W. Silvestri, and J.P. Toennies, in preparation.Google Scholar
  19. 19.
    E. Hulpke and D. Fuhrmann, to be submitted to Surf. Sci..Google Scholar
  20. 20.
    B.J. Hinch, J.W.M. Frenken, G. Zhang, and J.P. Toennies, Surf. Sci. 259, 288 (1991).ADSCrossRefGoogle Scholar
  21. 21.
    F. Hofmann, W. Schöllkopf, and J.P. Toennies, Proceedings of the R.A. Welch Foundation, 38th Conference on Chemical Research, Chemical Dynamics of Transient Species Houston, Texas 1994; F. Hofmann Ph.D. Thesis, Göttingen University, Germany 1995.Google Scholar
  22. 22.
    M. Bertino, F. Hofmann, and J.P. Toennies, accepted for publication in J. Chem. Phys. (1996).Google Scholar
  23. 23.
    D. Fuhrmann and Ch. Wöll, submitted to Surf. Sci..Google Scholar
  24. 24.
    Y. Cao and E.H. Conrad, Phys. Rev. Lett. 64, 447 (1990).ADSCrossRefGoogle Scholar
  25. 25.
    H.P. Bonzel and E.E. Latta, Surf. Sci. 76, 275 (1978).ADSCrossRefGoogle Scholar
  26. 26.
    P.S. Maiya and J.M. Blakely, J. Appl. Phys. 38, 698 (1967).ADSCrossRefGoogle Scholar
  27. 27.
    R.T. Tung and W.R. Graham, Surf. Sci. 97, 73 (1980).ADSCrossRefGoogle Scholar
  28. 28.
    Handbook of Chemistry and Physics, 57th Edition, R.C. Weast ed., CRC Press, Cleveland Ohio 1977.Google Scholar
  29. 29.
    R. Ferrando, Phys. Rev. Lett. 76, 4195 (1996).ADSCrossRefGoogle Scholar
  30. 30.
    X.J. Chen, F. Ercolessi, A.C. Levi, and E. Tosatti, Surf. Sci. 249, 237 (1991).ADSCrossRefGoogle Scholar
  31. 31.
    J.D. Wrigley and G. Ehrlich, Phys. Rev. Lett. 44, 661 (1980).ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Andrew P. Graham
    • 1
  • Walter Silvestri
    • 1
  • J. Peter Toennies
    • 1
  1. 1.Max-Planck Institut für StrömungsforschungGöttingenGermany

Personalised recommendations