کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7938873 | 1513185 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multibands tunneling in AAA-stacked trilayer graphene
ترجمه فارسی عنوان
چند تسمه تونل زنی در گرافن سه تایی آلیاژی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
We study the electronic transport through np and npn junctions for AAA-stacked trilayer graphene. Two kinds of gates are considered where the first is a single gate and the second is a double gate. After obtaining the solutions for the energy spectrum, we use the transfer matrix method to determine the three transmission probabilities for each individual cone Ï=0,±1. We show that the quasiparticles in AAA-stacked trilayer graphene are not only chiral but also labeled by an additional cone index Ï. The obtained bands are composed of three Dirac cones that depend on the chirality indexes. We show that there is perfect transmission for normal or near normal incidence, which is a manifestation of the Klein tunneling effect. We analyze also the corresponding total conductance, which is defined as the sum of the conductance channels in each individual cone. Our results are numerically discussed and compared with those obtained for ABA- and ABC-stacked trilayer graphene.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Superlattices and Microstructures - Volume 116, April 2018, Pages 44-53
Journal: Superlattices and Microstructures - Volume 116, April 2018, Pages 44-53
نویسندگان
Ilham Redouani, Ahmed Jellal, Abdelhadi Bahaoui, Hocine Bahlouli,