Resonant transmission in three-terminal triangle graphene nanojunctions with zigzag edges |
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| Authors: | Yuan Ping Chen Yue E. Xie X.L. Wei L.Z. Sun JianXin Zhong |
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| Affiliation: | 1. Department of Mechanical, Aeronautical and Biomedical Engineering, Irish Centre for Composites Research, Materials and Surface Science Institute, University of Limerick, Ireland;2. Multidisciplinary Nanotechnology Centre, Swansea University, Singleton Park, Swansea SA2 8PP, UK;1. Department of Physics, Xiangtan University, Xiangtan 411105, Hunan, China;2. Hunan Provincial Key Laboratory of Micro-Nano Energy Materials and Devices, Xiangtan University, Xiangtan 411105, Hunan, China;3. College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China;1. Institute of Mathematics and Physics, Central South University of Forestry and Technology, Changsha 410018, People''s Republic of China;2. National Laboratory for Infrared Physics, Chinese Academy of Sciences, Shanghai 200083, People''s Republic of China;3. College of Science, Jiujiang University, Jiujiang 332005, People''s Republic of China;4. School of Physics and Electronics, Central South University, Changsha 410083, People''s Republic of China |
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| Abstract: | Three-terminal nanojunctions based on triangle zigzag edged graphene flakes are proposed and their transport properties are studied. In the solid and hollow triangle graphene junctions, there exist different resonant transmissions due to the different electronic states in the two structures. The quasi-bound states in the solid junction are confined in the inner of the triangle flake, while those in the hollow junction are confined at the zigzag edges. In addition, these states are tightly associated with the size of the triangle flake, thus the resonant transmissions in the triangle graphene junctions can be tuned by the structural size and geometry. |
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