Abstract
Recent observations of a direct reaction between adsorbates and hydrogen atoms incident from the gas phase are interpreted in terms of an Eley-Rideal reaction. A detailed comparison of the experimental data for the HD/Cu(111) system with quantum mechanical model calculations corroborates such an interpretation. The peculiar isotope effect observed can be understood from the different dynamical implications of appropriately rescaled potential energy surfaces. The width of the measured time-of-flight spectrum is explained from the overlapping contributions of the populated vibrational levels. The angular distributions are rationalized by contributions both from ‘indirect’ events, where the incident atoms make several bounces in the surface well prior to reaction, and ‘direct’ reactive events.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Rettner, C.T.: Phys. Rev. Lett.69, 383 (1992).
Rettner, C.T., Auerbach, D.J.: Science263, 365 (1994); Rettner, C.T.: J. Chem. Phys.101, 1529 (1994).
Lykke, K., Kay, B.D.: in Laser Photoionization and Desorption Surface Analysis Techniques, edited by Nogar N.S., (SPIE, Bellingham, W.A., 1990) vol. 1208, p. 18; Jackson, B., Persson, M., Kay, B.D.: J. Chem. Phys.100, 7687 (1994).
Koleske, D.D., Gates, S.M., Schultz, J.A.: J. Chem. Phys. 99, 5619 (1993); Koleske, D.D., Gates S.M., Jackson, B.: J. Chem. Phys.101, 3301 (1994).
McCreery, J.H., Wolken, G., Jr., J. Chem. Phys.63, 2340 (1975).
Tully, J.C.: J. Chem. Phys.73, 6333 (1980).
Kratzer, P., Brenig, W.: Surf. Sci.254, 275 (1991).
Jackson, B., Persson, M.: J. Chem. Phys.96, 2378 (1992).
Brenig, W., Gross, A., Russ, R.: Z. Phys. B97, 311 (1995).
Persson, M., Jackson, B.: J. Chem. Phys.102, 1078 (1995).
Harris, J., Kasemo, B.: Surf. Sci. Letters105, L281 (1981).
Alexander, C.S., Prichard, J.: J. Chem. Soc. Faraday Trans. I67, 202 (1977).
McCash, E., Parker, S.F., Prichard, J., Chesters, M.A.: Surf. Sci.215, 363 (1989).
Michelsen, H.A., Rettner, C.T., Auerbach, D.J.: Surf. Sci.272, 65 (1992).
Küchenhoff, S., Brenig, W., Chiba, Y.: Surf. Sci.245, 389 (1991).
Nordlander, P., Holloway, S., Nørskov, J. K.: Surf. Sci.136, 59 (1984).
Comsa, G., David, R.: Surf. Sci.117, 77 (1982).
Michelsen, H.A., Rettner, C.T., Auerbach, D.J.: Phys. Rev. Lett.69, 2678 (1992).
Rettner, C.T.: (private communication)
Bischler, U., Sandl, P., Bertel, E., Brunner, T., Brenig, W.: Phys. Rev. Lett.70, 3603 (1993).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kratzer, P., Brenig, W. The dynamics of desorption induced by atomic hydrogen: HD/Cu(111). Z. Phys. B - Condensed Matter 99, 571–576 (1995). https://doi.org/10.1007/s002570050078
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s002570050078