Record link: 
http://hdl.handle.net/20.500.12708/192113
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Title: 
Charge-exchange-dependent energy loss of H and He in freestanding monolayers of graphene and MoS₂
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Citation: 
Niggas, A., Fischer, L., Kretschmer, S., Werl, M., Biber, H., Speckmann, C., McEvoy, N., Kotakoski, J., Aumayr, F., Krasheninnikov, A. V., & Wilhelm, R. A. (2023). Charge-exchange-dependent energy loss of H and He in freestanding monolayers of graphene and MoS₂. Physical Review A, 108(6), 0628231–0628238. https://doi.org/10.1103/PhysRevA.108.062823
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Publisher DOI: 
10.1103/PhysRevA.108.062823
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Publication Type: 
Article - Original Research Article
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Language: 
English
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Authors: 
Niggas, Anna 
Fischer, Lukas 
Kretschmer, Silvan 
Werl, Matthias 
Biber, Herbert 
Speckmann, Carsten 
McEvoy, Niall 
Kotakoski, Jani 
Aumayr, Friedrich 
Krasheninnikov, Arkady V. 
Wilhelm, Richard A. 
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Organisational Unit: 
E134-03 - Forschungsbereich Atomic and Plasma Physics 
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Journal: 
Physical Review A 
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ISSN: 
2469-9926
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Date (published): 
Dec-2023
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Number of Pages: 
8
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Publisher: 
AMER PHYSICAL SOC
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Peer reviewed: 
Yes
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Keywords: 
Ion-surface-interaction; 2D-materials; graphene; energy loss
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Abstract: 
We study the energy loss of helium and hydrogen ions after transmission through monolayers of graphene and MoS₂ and compare experimental results with different computational approaches. We find a systematically higher energy loss in experiments compared to simulations by up to a factor of 2. Additionally, our results show that neutralization processes of the particles increase the kinetic energy loss, a contribution generally not included in any computational approach.
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Research Areas: 
Surfaces and Interfaces: 100%
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Science Branch: 
1030 - Physik, Astronomie: 100%
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