https://doi.org/10.1140/epjs/s11734-023-00933-2
Regular Article
Inelastic scattering of hydrogen atoms off pristine and hydrogen-covered W(100) surfaces
1
University of Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400, Talence, France
2
DynAMoS (Dynamical processes in Atomic and Molecular Systems), Facultad de Física, Universidad de la Habana, Habana, Cuba
3
Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018, Donostia-San Sebastián, Spain
4
Laboratoire Collisions Agrégats Réactivité (IRSAMC), Université Toulouse III - Paul Sabatier, UMR 5589, F-31062, Toulouse Cedex 09, France
f
pascal.larregaray@u-bordeaux.fr
Received:
12
January
2023
Accepted:
2
July
2023
Published online:
26
July
2023
Recent experiments have shown that translational energy loss is mainly mediated by electron–hole pair excitations for hydrogen atoms impinging on clean metallic surfaces. Inspired by these studies, quasi-classical trajectory simulations are here performed to investigate the energy transfer after scattering of hydrogen atoms off clean and hydrogen-covered tungsten (100) surfaces. The present theoretical approach examines the coverage effect of the preadsorbed hydrogen atoms, as was done recently for the (110) crystallographic plane in (J Phys Chem C 125:14075, 2021). As suggested, scattering can be described in terms of three different dynamical mechanisms, the contribution of which changes with coverage, which allow to rationalize the shape of the energy loss spectra.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
