Record |
Title |
Kolasinski, R. D.; Whaley, J. A.; Karnesky, R. A.; San Marchi, C.; Bastasz. R. |
Year |
Characterization of the Ne-Al scattering potential using low energy ion scattering maps |
Abbreviated Journal |
Conference Article |
Issue |
2010 |
Keywords |
Nuclear Instruments and Methods in Physics Research B |
Address |
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Thesis |
269 |
Place of Publication |
11 |
Language |
1229-1233 |
Original Title |
scattering, channeling, ion-surface interactions, LEIS, aluminum |
Series Title |
In this study, we examine the scattering of inert-gas ions from Al(111) using low
energy ion scattering (LEIS). These techniques, because of their high surface specificity, provide
structural and compositional information from the first atomic layer of the surface and can be used
to determine the configuration of low-Z adsorbates. Extracting structural information embedded in
LEIS data presents many challenges, given the complex collision processes which ultimately
contribute to the detected scattering and recoil signals. To aid in the interpretation of these data,
we map scattered Ne+ ion signals over a wide range of crystal orientations with respect to the
incident beam in order to investigate a variety of scattering geometries. The signals are also
simulated using a modified version of the MARLOWE binary collision code and related to the
surface structure. We make quantitative comparisons between the simulated results and the
experimental data using reliability factors, and are able to show how the interatomic potential can
be calibrated. |
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NU @ karnesky @ |
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10980 |
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