Observation of Direct Vibrational Excitation in Gas-Surface Collisions: NO on Ag(111)

C. T. Rettner, F. Fabre, J. Kimman, and D. J. Auerbach
Phys. Rev. Lett. 55, 1904 – Published 28 October 1985
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Abstract

Vibrationally excited NO molecules have been observed in the scattering of NO(v=0) from Ag(111). A direct mechanism is inferred based on the observation of v=1 angular distributions, which are quasispecular, and rotational-state distributions, which depend on beam energy. Vibrational excitation is found to depend strongly on surface temperature, TS, and relatively weakly on incident kinetic energy, E, reaching (∼7±5)% at TS=760 K and E=120 kJ mol1. These results are discussed in terms of an electronic mechanism for vibrational excitation.

  • Received 1 July 1985

DOI:https://doi.org/10.1103/PhysRevLett.55.1904

©1985 American Physical Society

Authors & Affiliations

C. T. Rettner, F. Fabre*, J. Kimman, and D. J. Auerbach

  • IBM Research Laboratory, San Jose, California 95193

  • *Permanent address: Service de Physique des Atomes et des Surfaces, Commissariat à l'Energie Atomique, Centre d'Etudes Nucléaires de Saclay, F-91191 Gif-sur-Yvette Cedex, France.
  • Permanent address: Fundamenteel Onderzoek der Materie-Instituut voor Atoom- en Molecuulfysica, Postbus 41883, 1009 DB Amsterdam, The Netherlands.

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Issue

Vol. 55, Iss. 18 — 28 October 1985

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