Abstract
An electron band model is used to calculate the vibration frequency of a neutrally adsorbed atom such as hydrogen on a transition metal surface. The bond length increases with increasing adatom co-ordination number, and in the atop position is greater than in the corresponding metal-adatom dimer. For strong bonding there is little difference between the vibration frequency in the atop position and of the dimer, but for weak binding large shifts occur. A simple relation between the adsorption energy and vibration frequency is derived. Bond relaxation is found to be of great importance in determining vibration frequencies.
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© 1982 Plenum Press, New York
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Sayers, C.M. (1982). Vibrations of Neutrally Adsorbed Atoms on Transition Metal Surfaces. In: Caudano, R., Gilles, JM., Lucas, A.A. (eds) Vibrations at Surfaces. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-4058-4_14
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DOI: https://doi.org/10.1007/978-1-4684-4058-4_14
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4684-4060-7
Online ISBN: 978-1-4684-4058-4
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