کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8042099 1518702 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Surface symmetry of monolayer titanium oxide on Mo(1 1 2) studied via fast atom diffraction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Surface symmetry of monolayer titanium oxide on Mo(1 1 2) studied via fast atom diffraction
چکیده انگلیسی
In studies on titanium oxide thin films we demonstrate the potential of Fast Atom Diffraction (FAD) and triangulation methods to derive the surface unit cell with enhanced surface sensitivity. Helium atoms with energies of 1-2 keV are scattered from the surface along low indexed surface directions under grazing angles of incidence. From the observed diffraction patterns, the lateral periodicity of the surface structures is derived. For low TiOx coverages a well-ordered c(2 × 4) superstructure and for higher coverage a p(8 × 2) film is observed. Based on FAD and triangulation methods for azimuthal rotation of the target the arrangement of topmost atoms in smaller sub-unit cells is revealed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 315, 15 November 2013, Pages 9-13
نویسندگان
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