کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9595198 | 1507970 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surface alloying of Pb as a surfactant during epitaxial growth on Cu(1Â 1Â 1)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Surface alloying of Pb as a surfactant during epitaxial growth on Cu(1Â 1Â 1) Surface alloying of Pb as a surfactant during epitaxial growth on Cu(1Â 1Â 1)](/preview/png/9595198.png)
چکیده انگلیسی
As an important surfactant, Pb surface alloying in surfactant-assisted epitaxy growth was studied by synchrotron radiation photoemission. As annealing causes the submonolayer Pb, distributed as two-dimensional islands on Cu(1Â 1Â 1), to form Pb-Cu surface alloy, Cu growth is also found to activate the Pb-Cu surface alloy formation on submonolayer Pb covered Cu(1Â 1Â 1). Whereas, different from the fact that the Pb-Cu surface alloy is replaced by a Pb overlayer when the Pb coverage increases up to 1.0Â ML, Co deposition gives rise to the Pb-Co surface alloy even on the 1.0Â ML Pb covered Cu(1Â 1Â 1) surface. In the Pb-Cu surface alloy the Pb 5d core level is shifted toward Fermi level by about 20Â meV. Heating de-alloys the Pb-Co surface alloy, while the interface intermixture between Co film and Cu substrate is also enhanced at the same time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 589, Issues 1â3, 1 September 2005, Pages 1-7
Journal: Surface Science - Volume 589, Issues 1â3, 1 September 2005, Pages 1-7
نویسندگان
M.C. Xu, H.J. Qian, F.Q. Liu, K. Ibrahim, W.Y. Lai, H.J. Gao,