کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8204815 1530565 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Out-of-plane path of the Stone-Wales transformation in graphene
ترجمه فارسی عنوان
مسیر بیرون از تبدیل گرانولز در گرافن
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
چکیده انگلیسی
Recently it has been realized that Stone-Wales (SW) defects in graphene are not simple two-dimensional objects but rather involve large vertical displacements of many atoms, resulting in a sinelike shape of the cross section [J. Ma et al., 2009 [11]]. Customarily, formation of sinelike SW defects is assumed to take place in two steps: 1) an in-plane 90° rotation of two carbon atoms with respect to the center of the C-C bond and 2) transverse shift of those atoms in the opposite direction. Here we show that there is another transformation path that does not go through a flat defect configuration. Following that path results in lower energy barriers for both formation and annealing of sinelike SW defects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 379, Issues 30–31, 4 September 2015, Pages 1757-1761
نویسندگان
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