Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9818301 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2005 | 7 Pages |
Abstract
We use the wave packet propagation approach to study the dynamics of resonant charge transfer in hydrogen back-scattering from Cs adsorbates on Cu(1Â 1Â 1). The affinity level of the projectile strongly interacts with an adsorbate-localized state leading to an important modification of the projectile-substrate resonant charge transfer. At very low collision energies (<2.5Â eV) the adiabatic evolution of the system leads to the blocking of the negative ion formation in back-scattering of neutral hydrogen atoms from Cs adsorbate. At higher energies non-adiabatic transitions exist, and negative ion formation is possible.
Keywords
Related Topics
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Materials Science
Surfaces, Coatings and Films
Authors
J. Sjakste, A.G. Borisov, J.P. Gauyacq,