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Scattering from isolated molecules on metal surfaces: The relationship between elastic and inelastic intensities

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Graham,  A. P.
Emeritus Group Molecular Interactions, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Tang,  K. T.
Emeritus Group Molecular Interactions, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

/persons/resource/persons173691

Toennies,  J. P.
Emeritus Group Molecular Interactions, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Citation

Choi, B. H., Graham, A. P., Tang, K. T., & Toennies, J. P. (2002). Scattering from isolated molecules on metal surfaces: The relationship between elastic and inelastic intensities. Journal of Chemical Physics, 116(17), 7695-7703.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-178D-E
Abstract
The measured angular distributions of the elastic and one- phonon T-mode vibrational inelastic scattering of helium atoms from a low coverage (ΘCO=0.03) of isolated carbon monoxide molecules on Pt(111) are analyzed with a novel scattering theory. The inelastic angular distributions of the dispersionless parallel vibrational mode (T mode) are found to have similar features as the much more intense elastic angular distribution. The new theory relates the elastic angular distribution to the inelastic T-mode angular distribution, via a form factor. (C) 2002 American Institute of Physics.