کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9594603 1507971 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nucleation and step-edge barriers always destabilize step-flow growth of a vicinal surface
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Nucleation and step-edge barriers always destabilize step-flow growth of a vicinal surface
چکیده انگلیسی
We consider the effect of nucleation on a one-dimensional stepped surface, finding that step-flow growth is metastable for any strength of the additional step-edge barrier. The surface is made unstable by the formation of a critical nucleus, whose lateral size is related to the destabilization process on a high-symmetry surface. Arguments based on a critical nucleus of height two, which suggest the existence of a fully stable regime for small barrier, fail to describe this phenomenon.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 588, Issues 1–3, 20 August 2005, Pages L227-L232
نویسندگان
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