کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5424535 | 1395828 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Coalescence of domes and superdomes at a low growth rate or during annealing: Towards the formation of flat-top superdomes
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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: Coalescence of domes and superdomes at a low growth rate or during annealing: Towards the formation of flat-top superdomes Coalescence of domes and superdomes at a low growth rate or during annealing: Towards the formation of flat-top superdomes](/preview/png/5424535.png)
چکیده انگلیسی
We investigate the morphology of islands obtained by epitaxial growth of Ge on Si(0Â 0Â 1). During a low growth rate or during annealing and depending of the quench method, we observe the formation of a new type of superdomes, which exhibit additional {15Â 3Â 23} facets, an increase of their {0Â 0Â 1} and {1Â 0Â 5} facet area on their top and a smaller aspect ratio compared to known superdomes. This flat-top superdome shape results from the complex evolution of domes and superdomes: coalescence, intermixing and ripening. Dome or superdome coalescence which results in the newly observed shape appears as a dominant pathway towards dislocation nucleation for the investigated temperature range.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 602, Issue 13, 1 July 2008, Pages 2157-2161
Journal: Surface Science - Volume 602, Issue 13, 1 July 2008, Pages 2157-2161
نویسندگان
M.-I. Richard, G. Chen, T.U. Schülli, G. Renaud, G. Bauer,