کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5350840 | 1503663 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Morphology transition of Ag ultrathin films on Pt (1Â 1Â 1): Kinetic Monte Carlo simulation
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Kinetic Monte Carlo simulations are carried out to explore the growth of the Ag ultrathin film on Pt (1Â 1Â 1) in the early growth stage. With increasing temperature, the island shapes are demonstrated to transform from fractal to compact and resemble the surface crystal structure at high temperature. The transition temperature of the island evolution is demonstrated to increase with the deposition rate. The competing mechanism between nucleation and growth is pursued. The transition temperature of island evolution is deduced by the average island density distributions and demonstrated by the island morphology evolutions. In addition, the extent of a non-ideal substrate surface is explored. As the interaction energy between adatom and defect point increases, the island shape becomes small and irregular. The effect of surface defect on the nucleation and growth is demonstrated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 301, 15 May 2014, Pages 289-292
Journal: Applied Surface Science - Volume 301, 15 May 2014, Pages 289-292
نویسندگان
Shuhan Chen, Jingming Luo, Shouliang Bu,