کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10620403 988619 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Self-healing in fractured GaAs nanowires
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Self-healing in fractured GaAs nanowires
چکیده انگلیسی
Molecular dynamics simulations are performed to investigate a spontaneous self-healing process in fractured GaAs nanowires with a zinc blende structure. The results show that such self-healing can indeed occur via rebonding of Ga and As atoms across the fracture surfaces, but it can be strongly influenced by several factors, including wire size, number of healing cycles, temperature, fracture morphology, oriented attachment and atomic diffusion. For example, it is found that the self-healing capacity is reduced by 46% as the lateral dimension of the wire increases from 2.3 to 9.2 nm, and by 64% after 24 repeated cycles of fracture and healing. Other factors influencing the self-healing behavior are also discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 60, Issue 15, September 2012, Pages 5593-5600
نویسندگان
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