Publication detail
A study of a LEIS azimuthal scan behavior: Classical dynamics simulation
MATLOCHA, T. PRŮŠA, S. KOLÍBAL, M. BÁBOR, P. PRIMETZHOFER, D. MARKIN, S. BAUER, P. ŠIKOLA, T.
Czech title
Studium chovávání rozptylu nízkoenergeických iontů: simulace pomocí metod klasické dynamiky
English title
A study of a LEIS azimuthal scan behavior: Classical dynamics simulation
Type
journal article - other
Language
en
Original abstract
A classical dynamics simulation of the low energy He+ ion scattering on a Cu(100) surface was carried out for a more detailed explanation of LEIS azimuthal scans with respect to a previous work. The Thomas-Fermi.Moliere screened potential was used in the calculations to describe interatomic repulsive interactions. A topping power and thermal vibrations of target atoms were involved as well. The results of the simulations were compared with the experiment and thus the correction factors of interatomic scans found. Themain features of the calculated azimuthal scans N are discussed and the relevant parts compared. Additionally, ion blocking effects were studied by the analysis of N distribution of ions backscattered into the whole half-space above the Cu(100) surface. This gave us a more transparent view into the low energy ion scattering processes on this periodic surface.
Czech abstract
V této práci jsme se zabývali studiem chováním simulovaných LEIS azimutálních závislostí rozptylu nízkoenergetických iontů na povrchu Cu(100). Tato studie navazuje na dříve publikované výsledky pracovní skupiny P. Bauera. V simulacích rozptylu iontů jsme použili Thomas-Fermi-Molierův interetekční potenciál pro popis meziatomárních odpudivých sil. Průběžná ztráta energie iontů a tepelné vibrace terčových atomů byly rovněž zahrnuty do modelu rozptylu iontů a výsledky simulací jsme porovnali s experimentem. Kromě toho jsme studovali blokovací ůčinky terčových atomů ve výsledných ůhlových závislostech N na zpětně odražených ionty do celého polo-prostoru nad povrch Cu(100).
English abstract
A classical dynamics simulation of the low energy He+ ion scattering on a Cu(100) surface was carried out for a more detailed explanation of LEIS azimuthal scans with respect to a previous work. The Thomas-Fermi.Moliere screened potential was used in the calculations to describe interatomic repulsive interactions. A topping power and thermal vibrations of target atoms were involved as well. The results of the simulations were compared with the experiment and thus the correction factors of interatomic scans found. Themain features of the calculated azimuthal scans N are discussed and the relevant parts compared. Additionally, ion blocking effects were studied by the analysis of N distribution of ions backscattered into the whole half-space above the Cu(100) surface. This gave us a more transparent view into the low energy ion scattering processes on this periodic surface.
Keywords in Czech
LEIS; počítačové simulace; rozptyl iontů
Keywords in English
LEIS; Computer simulation; Ion scattering
RIV year
2010
Released
20.09.2010
ISSN
0039-6028
Journal
Surface Science
Volume
604
Number
21-22
Pages from–to
1906–1911
Pages count
6
BIBTEX
@article{BUT49957,
author="Tomáš {Matlocha} and Stanislav {Průša} and Miroslav {Kolíbal} and Petr {Bábor} and Daniel {Primetzhofer} and S. N. {Markin} and P. {Bauer} and Tomáš {Šikola},
title="A study of a LEIS azimuthal scan behavior: Classical dynamics simulation",
journal="Surface Science",
year="2010",
volume="604",
number="21-22",
month="September",
pages="1906--1911",
issn="0039-6028"
}