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Resonant charge transfer during ion scattering on metallic surfaces


Lomonosov Moscow State University, Faculty of Physics, Vorobevy gory, Moscow, 119899, Russian Federation

The electron transfer during low-energy ion scattering (LEIS) is discussed in the article. In the most cases the final charge state of ions/atoms scattered from metallic surface is formed due to resonant charge transfer (RCT). The basic concepts, model representations and the basic laws of electronic exchange are systemized in the article. For the practical usage, the RCT is primarily important for surface diagnostics by LEIS. Of note, that LEIS has the best surface sensitivity and it is indispensable for the diagnosis of surface elemental composition. The incorrect accounting of electron transfer in LEIS can lead to significant errors in determining the concentration of elements.

Keywords: ion beams, scattering, metals, nanosystems, charge exchange, resonant charge transfer, surface analysis
PACS: 79.20.Rf, 34.35.+a, 73.40.Gk, 73.63.−b, 73.20.At, 02.70.−c (all)
DOI: 10.3367/UFNe.2019.11.038691
Citation: Gainullin I K "Resonant charge transfer during ion scattering on metallic surfaces" Phys. Usp., accepted

Received: 21st, May 2019, revised: 5th, November 2019, 19th, November 2019

Оригинал: Гайнуллин И К «Резонансный электронный обмен при рассеянии ионов на металлических поверхностях» УФН, принята к публикации; DOI: 10.3367/UFNr.2019.11.038691

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