Charge-exchange-dependent energy loss of H and He in freestanding monolayers of graphene and MoS2

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Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2023-12
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Language
en
Pages
8
1-8
Series
Physical Review A, Volume 108, issue 6
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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Funding Information: The authors would like to acknowledge funding from the Austrian Science Fund (FWF) via Projects 10.55776/Y1174, 10.55776/I4914, 10.55776/P36264, and 10.55776/I4101 and through doctoral college Advanced Functional Materials–Hierarchical Design of Hybrid Systems. A.N. and R.A.W. acknowledge funding from TU Wien's Innovative Project Fund. A.V.K. is grateful to the German Research Foundation (DFG) for support through Project No. KR 4866/9-1 and the collaborative research center Chemistry of Synthetic 2D Materials through Grant No. CRC-1415-417590517. Generous CPU time grants from the Technical University of Dresden computing cluster (TAURUS) and Gauss Centre for Supercomputing e.V., Supercomputer HAWK at Hochstleistungsrechenzentrum Stuttgart, are greatly appreciated. Publisher Copyright: © 2023 American Physical Society.
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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, vol. 108, no. 6, 062823, pp. 1-8 . https://doi.org/10.1103/PhysRevA.108.062823