کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1814691 | 1025653 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Abnormal electronic transport in disordered graphene nanoribbon
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We investigate the conductivity Ï of graphene nanoribbons with zigzag edges as a function of Fermi energy EF in the presence of the impurities with different potential range. The dependence of Ï(EF) displays four different types of behavior, classified to different regimes of length scales decided by the impurity potential range and its density. Particularly, low density of long range impurities results in an extremely low conductance compared to the ballistic value, a linear dependence of Ï(EF) and a wide dip near the Dirac point, due to the special properties of long range potential and edge states. These behaviors agree well with the results from a recent experiment by Miao et al. [Science 317 (2007) 1530 (SOM)].
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 404, Issue 16, 1 August 2009, Pages 2259-2262
Journal: Physica B: Condensed Matter - Volume 404, Issue 16, 1 August 2009, Pages 2259-2262
نویسندگان
Yan-Yang Zhang, Jiang-Ping Hu, X.C. Xie, W.M. Liu,