by R. Andrzejewski, V. Kuzmin, D. O. Boerma, D. Primetzhofer, S. N. Markin and P. Bauer
Abstract:
Angular scans were performed for a Cu(100) single crystal and 3keV He+ ions. The results were compared to simulations using the Monte-Carlo code TRIC [R. Andrzejewski, Ph.D. thesis, Universidad Autonóma de Madrid, 2008; V.A. Khodyrev, R. Andrzejewski, A. Rivera, D.O. Boerma, J.E. Prieto, in press] to obtain information on the ion–atom interaction. Different potentials were used in the simulations, e.g. the Thomas–Fermi–Moliere potential with a modified screening length and a Hartree–Fock potential. It was found that the experimental results can be very well reproduced by use of two potentials that exhibit a significantly different distance dependence, when properly scaled. This leads to the conclusion that care must be taken when deducing a scattering potential from comparison of experimental and simulated azimuthal scans.
Reference:
R. Andrzejewski, V. Kuzmin, D. O. Boerma, D. Primetzhofer, S. N. Markin and P. Bauer, “Azimuthal scans in LEIS: Influence of the scattering potential”, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 267, no. 4, pp. 638–641.
Bibtex Entry:
@article{andrzejewski_azimuthal_2009,
series = {Proceedings of the 17th {International} {Workshop} on {Inelastic} {Ion}-{Surface} {Collisions}},
title = {Azimuthal scans in {LEIS}: {Influence} of the scattering potential},
volume = {267},
issn = {0168-583X},
shorttitle = {Azimuthal scans in {LEIS}},
url = {http://www.sciencedirect.com/science/article/pii/S0168583X08012639},
doi = {10.1016/j.nimb.2008.11.021},
abstract = {Angular scans were performed for a Cu(100) single crystal and 3keV He+ ions. The results were compared to simulations using the Monte-Carlo code TRIC [R. Andrzejewski, Ph.D. thesis, Universidad Autonóma de Madrid, 2008; V.A. Khodyrev, R. Andrzejewski, A. Rivera, D.O. Boerma, J.E. Prieto, in press] to obtain information on the ion–atom interaction. Different potentials were used in the simulations, e.g. the Thomas–Fermi–Moliere potential with a modified screening length and a Hartree–Fock potential. It was found that the experimental results can be very well reproduced by use of two potentials that exhibit a significantly different distance dependence, when properly scaled. This leads to the conclusion that care must be taken when deducing a scattering potential from comparison of experimental and simulated azimuthal scans.},
number = {4},
urldate = {2017-10-06},
journal = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
author = {Andrzejewski, R. and Kuzmin, V. and Boerma, D. O. and Primetzhofer, D. and Markin, S. N. and Bauer, P.},
month = feb,
year = {2009},
keywords = {Cu(100), Interaction potential, Low-energy ion scattering, Monte-Carlo simulations, Screening length, Single crystal},
pages = {638--641},
file = {ScienceDirect Full Text PDF:E:\cmam_papers\files\970\Andrzejewski et al. - 2009 - Azimuthal scans in LEIS Influence of the scatteri.pdf:application/pdf;ScienceDirect Full Text PDF:E:\Usuarios\Administrator\Zotero\storage\3I4C6XJR\Andrzejewski et al. - 2009 - Azimuthal scans in LEIS Influence of the scatteri.pdf:application/pdf;ScienceDirect Snapshot:E:\cmam_papers\files\969\S0168583X08012639.html:text/html;ScienceDirect Snapshot:E:\Usuarios\Administrator\Zotero\storage\P9AYRKY4\S0168583X08012639.html:text/html},
}