کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5426841 | 1395908 | 2006 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Temperature- and coverage-dependent evolution of the Au/Pd(1 1 0) surface structure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The morphology and the atomic scale structure of thin gold films (up to 2.5Â ML) on Pd(1Â 1Â 0) were studied by means of scanning tunneling microscopy and surface X-ray diffraction. At room temperature the films exhibit a multilayer growth mode accompanied by the formation of highly anisotropic islands. Annealing above 500Â K significantly increases the smoothness of the gold films, which are in registry with the substrate. Above a critical threshold of two monolayers a (1Â ÃÂ 2) missing-row reconstructed film is found. This reconstructed surface is well ordered after annealing at temperatures above 580Â K. The specific gold film morphology is envisaged as a way to relax the strain caused by the mismatch between gold and palladium.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 600, Issue 12, 15 June 2006, Pages 2614-2622
Journal: Surface Science - Volume 600, Issue 12, 15 June 2006, Pages 2614-2622
نویسندگان
M. Kralj, A. Bailly, M.-C. Saint-Lager, S. Degen, A. Krupski, C. Becker, P. Dolle, M. De Santis, K. Wandelt,