Charge-exchange-dependent energy loss of H and He in freestanding monolayers of graphene and MoS<sub>2</sub>

Author(s)
Anna Niggas, Lukas Fischer, Silvan Kretschmer, Matthias Werl, Herbert Biber, Carsten Speckmann, Niall McEvoy, Jani Kotakoski, Friedrich Aumayr, Arkady V. Krasheninnikov, Richard A. Wilhelm
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.

Organisation(s)
Physics of Nanostructured Materials
External organisation(s)
Technische Universität Wien, Helmholtz-Zentrum Dresden-Rossendorf, Trinity College Dublin, Aalto University
Journal
Physical Review A
Volume
108
No. of pages
8
ISSN
2469-9926
DOI
https://doi.org/10.1103/PhysRevA.108.062823
Publication date
12-2023
Peer reviewed
Yes
Austrian Fields of Science 2012
103018 Materials physics, 102009 Computer simulation
ASJC Scopus subject areas
Atomic and Molecular Physics, and Optics
Portal url
https://ucrisportal.univie.ac.at/en/publications/chargeexchangedependent-energy-loss-of-h-and-he-in-freestanding-monolayers-of-graphene-and-mos2(e13113af-0a9d-40bd-b865-a52175d89ed5).html