کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5359145 | 1388243 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption of gold on hydrogen terminated Si(0Â 0Â 1): Formation of chain structure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Possible formation of stable Au atomic wire on the hydrogen terminated Si(0Â 0Â 1): 3Ã1 surface is investigated under the density functional formalism. The hydrogen terminated Si(0Â 0Â 1): 3Ã1 surface is patterned in two different ways by removing selective hydrogen atoms from the surface. The adsorption of Au on such surfaces is studied at different sub-monolayer coverages. At 4/9 monolayer (ML) coverage, zigzag continuous Au chains are found to be stable on the patterned hydrogen terminated Si(0Â 0Â 1): 3Ã1 surface. The reason for the stability of the wire structures at 4/9 ML coverage is explained. It is to be noted that beyond 4/9 ML coverage, the additional Au atoms may introduce clusters on the surface. The continuous atomic gold chains on the substrate may be useful for the fabrication of atomic scale devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 256, Issue 2, 30 October 2009, Pages 495-498
Journal: Applied Surface Science - Volume 256, Issue 2, 30 October 2009, Pages 495-498
نویسندگان
Bikash C. Gupta, Shyamal Konar, Rudra P. Bose,