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  Inelastic scattering of H atoms from surfaces

Bünermann, O., Kandratsenka, A., & Wodtke, A. M. (2021). Inelastic scattering of H atoms from surfaces. Journal of Physical Chemistry A, 125(15), 3059-3076. doi:10.1021/acs.jpca.1c00361.

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 Creators:
Bünermann, O.1, Author              
Kandratsenka, A.1, Author              
Wodtke, A. M.2, Author              
Affiliations:
1Department of Dynamics at Surfaces, MPI for Biophysical Chemistry, Max Planck Society, ou_578600              
2Department of Dynamics at Surfaces, MPI for biophysical chemistry, Max Planck Society, ou_578600              

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Free keywords: Scattering, Electrical energy, Energy, Metals, Two dimensional materials
 Abstract: We have developed an instrument that uses photolysis of hydrogen halides to produce nearly monoenergetic hydrogen atom beams and Rydberg atom tagging to obtain accurate angle-resolved time-of-flight distributions of atoms scattered from surfaces. The surfaces are prepared under strict ultrahigh vacuum conditions. Data from these experiments can provide excellent benchmarks for theory, from which it is possible to obtain an atomic scale understanding of the underlying dynamical processes governing H atom adsorption. In this way, the mechanism of adsorption on metals is revealed, showing a penetration–resurfacing mechanism that relies on electronic excitation of the metal by the H atom to succeed. Contrasting this, when H atoms collide at graphene surfaces, the dynamics of bond formation involving at least four carbon atoms govern adsorption. Future perspectives of H atom scattering from surfaces are also outlined.

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Language(s): eng - English
 Dates: 2021-03-292021-04-22
 Publication Status: Published in print
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 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.jpca.1c00361
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Title: Journal of Physical Chemistry A
Source Genre: Journal
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Pages: - Volume / Issue: 125 (15) Sequence Number: - Start / End Page: 3059 - 3076 Identifier: -