کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5423160 | 1507952 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cooperative phenomena in self-assembled nucleation of 3Â ÃÂ 4-In/Si(100) surface magic clusters
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Using statistical analysis of the scanning tunneling microscopy images of the 3Â ÃÂ 4-In surface magic cluster (SMC) arrays on Si(100)1Â ÃÂ 2 substrate at low In coverages, the main regularities of the space distribution of the nucleated SMCs have been established. It has been found that a nucleated SMC perturbs the surface potential relief within a limited zone around itself in a way that some of the sites in the zone demonstrate a great preference for nucleating a new cluster, while in the other sites the nucleation is greatly suppressed. Outside the zone, the nucleation probability is close to that of the random nucleation simulated using Monte-Carlo technique. Energetic background of the observed phenomena has been proved using density-functional theory calculations, which clearly demonstrate that the lower the formation energy the higher the occurrence probability of a given cluster-pair configuration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 604, Issues 13â14, 15 July 2010, Pages 1116-1120
Journal: Surface Science - Volume 604, Issues 13â14, 15 July 2010, Pages 1116-1120
نویسندگان
O.A. Utas, N.V. Denisov, V.G. Kotlyar, A.V. Zotov, A.A. Saranin, J.P. Chou, M.Y. Lai, C.M. Wei, Y.L. Wang,