کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1595621 1515724 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Growth of ordered titanium oxide films on Ag(100)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Growth of ordered titanium oxide films on Ag(100)
چکیده انگلیسی
Titanium oxide films grown on Ag(100) have been investigated with low-energy electron diffraction, X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy. As Ti is deposited on Ag(100) at room temperature in an O2 atmosphere at 10−5-10−7 Torr, a disordered TiO2-like film is formed. As the surface is subsequently heated at 600 ∘C, though the composition of the film is nearly unchanged, the film changes into an ordered film with (5×1) periodicity [(5×1) TiO2 film]. On the other hand, as Ti is deposited in O2 at 5.0×10−9-1.0×10−8 Torr, a disordered TiO-like film is formed. As the surface is subsequently heated at 600 ∘C, the composition of the film is nearly unchanged and the film changes into an ordered film with (1×1) periodicity [(1×1) TiO film]. Ultraviolet photoelectron spectroscopy measurements show that the (1×1) TiO film has an electronic state around the Fermi level, and the state is ascribed to a partially filled Ti 3d state which has been theoretically expected to exist in a TiO crystal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 142, Issues 1–2, April 2007, Pages 32-35
نویسندگان
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