کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8203715 | 1530526 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Insulator-semimetallic transition in quasi-1D charged impurity-infected armchair boron-nitride nanoribbons
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Insulator-semimetallic transition in quasi-1D charged impurity-infected armchair boron-nitride nanoribbons Insulator-semimetallic transition in quasi-1D charged impurity-infected armchair boron-nitride nanoribbons](/preview/png/8203715.png)
چکیده انگلیسی
We address control of electronic phase transition in charged impurity-infected armchair-edged boron-nitride nanoribbons (ABNNRs) with the local variation of Fermi energy. In particular, the density of states of disordered ribbons produces the main features in the context of pretty simple tight-binding model and Green's functions approach. To this end, the Born approximation has been implemented to find the effect of Ï-band electron-impurity interactions. A modulation of the Ï-band depending on the impurity concentrations and scattering potentials leads to the phase transition from insulator to semimetallic. We present here a detailed physical meaning of this transition by studying the treatment of massive Dirac fermions. From our findings, it is found that the ribbon width plays a crucial role in determining the electronic phase of disordered ABNNRs. The obtained results in controllable gap engineering are useful for future experiments. Also, the observations in this study have also fueled interest in the electronic properties of other 2D materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 382, Issue 14, 12 April 2018, Pages 995-999
Journal: Physics Letters A - Volume 382, Issue 14, 12 April 2018, Pages 995-999
نویسندگان
Bui Dinh Hoi, Mohsen Yarmohammadi,