کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1691692 1011328 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Energy transfer phenomena of keV fullerenes during grazing scattering from an Al(0 0 1) surface
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Energy transfer phenomena of keV fullerenes during grazing scattering from an Al(0 0 1) surface
چکیده انگلیسی
Angular distributions for grazing scattering of C60+ fullerenes with energies of up to some 10 keV from an atomically clean and flat Al(0 0 1) surface are studied. Scattering proceeds in the regime of surface channeling where the motions of projectiles parallel and normal to the surface are widely decoupled. At low energies for the motion with respect to the surface normal, the clusters are scattered nearly elastically, whereas for larger energies a substantial amount of normal energy is lost. The results are compared to trajectory simulations using the Tersoff potential for the cluster and 3D- as well as 1D-rigid-wall representations for the surface. We find that, despite the large mass of C60, the surface can be considered as a 1D- rigid wall and that the exact form of the interaction potential with the surface does not influence the normal energy loss. Therefore, properties of the fullerene and its interaction with the surface can be studied under well-defined conditions. The energy loss is transferred to internal excitations of the fullerenes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 82, Issue 9, 2 May 2008, Pages 895-899
نویسندگان
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