کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1860812 | 1037459 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electronic and magnetic properties of zigzag edge graphene nanoribbons with Stone-Wales defects
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electronic and magnetic properties of zigzag edge graphene nanoribbons with Stone-Wales defects Electronic and magnetic properties of zigzag edge graphene nanoribbons with Stone-Wales defects](/preview/png/1860812.png)
چکیده انگلیسی
The electronic and magnetic properties of zigzag graphene nanoribbons (ZGNRs) with Stone-Wales defects are studied by extensive first-principles calculations. It is shown that the asymmetry distribution of the Stone-Wales defects can induce finite magnetic moment in the defective ZGNRs. As the defect near one of the ribbon edges moving to the centre region, the magnetic moment of the defective ZGNRs gradually decreases to zero, following a transition from metal to semi-half-metal and eventually to semiconductor. In addition, by symmetrically placing an additional defect at the opposite side of the defective ZGNRs, the finite magnetic moment vanishes, and the electronic properties depend on the distance between the defect and the closer ribbon edge. These findings are robust within a wide range of defect concentration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 373, Issue 37, 7 September 2009, Pages 3354-3358
Journal: Physics Letters A - Volume 373, Issue 37, 7 September 2009, Pages 3354-3358
نویسندگان
Peng Lu, Zhuhua Zhang, Wanlin Guo,