کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5358469 1388232 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Surface-stress-induced elongation of β-Sn metal nanowires: A density-functional study
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Surface-stress-induced elongation of β-Sn metal nanowires: A density-functional study
چکیده انگلیسی
We investigated surface stabilities and stresses of β-Sn and their consequences to the nanowire structure through density-functional theory calculations. β-Sn nanowires are well known to grow along the [1 0 0] direction. Even though the (1 0 0) and (0 1 0) planes are equivalent in bulk, the surface stresses are found to induce the anisotropic deformation. Along the surface zigzag bond chain direction, large negative surface tensions are found, combined with a linearization tendency of the zigzag bond chains. The negative surface tensions are not typical on metal surfaces and results in the elongation of the β-Sn metal nanowires.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 256, Issue 11, 15 March 2010, Pages 3603-3606
نویسندگان
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