Transmission Coefficient of a Lengthy Ladder-Like GrapheneNanoribbin Connected to Some Additional Benzene Rings
Author(s):
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
In this paper, we consider the electronic transport properties of different configurations of a ladder-like nanoribbon which is connected to some benzene rings in its small part. To this end, we use the equilibrium Green’s function method within the tight-binding approach and the nearest neighbor approximation. We first introduce a unitary transformation matrix in order to diagonalize the matrix Hamiltonian of the nanoribbon in its cross-section direction. In fact, we rewrite the Hamiltonian of the system in a way that the Hamiltonian of the ideal parts converts to the Hamiltonian of two simple chains. The results show that the existence of the extra rings makes the conductance decreasing and creation of some anti-resonance deeps in the transmission coefficient spectra for some cases. The electronic transmission coefficients of the different configurations which are constructed by position variation of extra rings are studied and compared. Particularly, the value of the electronic conductance in the Fermi energy for different configurations is taken into the investigation. The model can be extended for any arbitrary honeycomb structure of the center part which is connected to two ladder-like nanoribbon leads
Keywords:
Language:
Persian
Published:
Nano scale, Volume:5 Issue: 4, 2019
Pages:
329 to 334
magiran.com/p1945615
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!