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Kinetic electron emission from metal surfaces induced by impact of slow ions
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SYSNO ASEP 0428569 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Kinetic electron emission from metal surfaces induced by impact of slow ions Author(s) Šroubek, Zdeněk (URE-Y)
Lorinčík, Jan (URE-Y)Number of authors 2 Source Title Surface Science. - : Elsevier - ISSN 0039-6028
-, č. 625 (2014), s. 7-9Number of pages 3 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords Ion induced kinetic electron emission ; Electronic excitation Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering R&D Projects ME10086 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support URE-Y - RVO:67985882 UT WOS 000336355200002 EID SCOPUS 84899719299 DOI https://doi.org/10.1016/j.susc.2014.02.017 Annotation Available experimental data on the kinetic electron emission from surfaces of metals induced by impact of very slow ions indicate that the dependence of the total electron yield on the projectile velocity, the projectile atomic number and the metal work function can be described by a simple analytical formula. A precise theoretical description of this emission process based on averaging over all trajectories and properly taking into account electron excitations in non-ideal solids is currently not feasible because of the complexity of excitation processes. The presented simple phenomenological model, which uses free electron metal substrates, simulates the experimental observations quite well. As discussed in the paper, the model requires ad hoc assumptions regarding the electron excitation. A high spatial localization of the excitation and ensuing electron-electron interaction in the impact zone are the essential features of the model Workplace Institute of Radio Engineering and Electronics Contact Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Year of Publishing 2015
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