Z-shaped graphene nanoribbon quantum dot device

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Z-shaped graphene nanoribbon quantum dot device

Stimulated by recent advances in isolating graphene, the authors discovered that a quantum dot can be trapped in a Z-shaped graphene nanoribbon junction. The topological structure of the junction can completely confine electronic states. By varying the junction length, the authors can alter the spatial confinement and the number of discrete levels within the junction. In addition, a quantum dot...

متن کامل

Ballistic rectification in a Z-shaped graphene nanoribbon junction

Z. F. Wang, Qunxiang Li, Q. W. Shi, Xiaoping Wang, J. G. Hou, Huaixiu Zheng, and Jie Chen Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China Department of Electrical and Computer Engineering, University of Alberta, AB T6 G 2V4, Canada National Institute of Nanotechnology, Department of Ele...

متن کامل

Electron Transport and Quantum-Dot Energy Levels in Z-Shaped Graphene Nanoconstriction with Zigzag Edges

Motivated by recent advances in fabricating graphene nanostructures, we find that an electron can be trapped in Z-shaped graphene nanoconstriction with zigzag edges. The central section of the constriction operates as a single-level quantum dot, as the current flow towards the adjunct sections (rotated by 60◦) is strongly suppressed due to mismatched valley polarization, although each section i...

متن کامل

Electronic Behavior of Doped Graphene Nanoribbon Device: NEGF+DFT

Quantum transport properties of pure and functioned infinite lead-connection region-lead systembased on the zigzag graphene nanoribbon (2-zGNR) have been investigated. In this work the effectof the doping functionalization on the quantum transport of the 2-zGNR has been computationallystudied. Also, the effect of the imposed gate voltages (-3.0, 0.0 and +3.0 V) and bias voltages 0.0 to2.0 V hav...

متن کامل

Quantum dot behavior in bilayer graphene nanoribbons.

Bilayer graphene has recently earned great attention for its unique electronic properties and commendable use in electronic applications. Here, we report the observation of quantum dot (QD) behaviors in bilayer graphene nanoribbons (BL-GNRs). The periodic Coulomb oscillations indicate the formation of a single quantum dot within the BL-GNR because of the broad distribution function of the carri...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Applied Physics Letters

سال: 2007

ISSN: 0003-6951,1077-3118

DOI: 10.1063/1.2761266