https://doi.org/10.1140/epjd/s10053-022-00588-z
Regular Article – Atomic Physics
Critical velocities for the nanostructure creation on a metal surface by an impact of slow highly charged Ar
, Kr, and Xe ions
1
Faculty of Physics, University of Belgrade, P.O. Box 368, 11001, Belgrade, Serbia
2
Faculty of Technical Sciences, University of Priština-Kosovska Mitrovica, Knjaza Miloša 7, 38220, Kosovska Mitrovica, Serbia
Received:
22
October
2022
Accepted:
19
December
2022
Published online:
4
January
2023
We study the interaction of highly charged ions (Ar, Kr, and Xe, charge 
) with metal surfaces for low to moderate ionic velocities. We calculate the neutralization energy and the deposited kinetic energy, both necessary for the nanostructure (hillocks or craters) creation. The cascade neutralization above the surface we analyze within the framework of the time-symmetrized two-state vector model and the micro-staircase model. The energy deposition inside the solid (nuclear stopping power) we consider using the charge dependent ion-target atom interaction potential. We define the critical ionic velocities as a measure of the interplay of the neutralization energy and the deposited kinetic energy in the process of the surface modification. These quantities enable us to distinguish the velocity regions characteristic for the particular nanostructure shapes.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2022. 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.
