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Ab initio study of the electronic and transport properties of waved graphene nanoribbons |
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| Institution: | 1. Division of Physics and Applied Physics, Nanyang Technological University, Singapore 637371, Singapore;2. Department of Physics, Yonsei University, Seoul 120-749, Korea;1. Department of Physics, College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China;2. Key Lab of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan 030024, China;1. Department of Physics, Southern Federal University, 5 Zorge Street, 344090 Rostov-on-Don, Russia;2. Department of Mechanical Engineering, University of Bath, Bath BA2 7AY, United Kingdom;3. Institute of High Technologies and Piezotechnics, Southern Federal University, 10 Milchakov Street, 344090 Rostov-on-Don, Russia |
| Abstract: | We apply the nonequilibrium Green's function method based on density functional theory to investigate the electronic and transport properties of waved zigzag and armchair graphene nanoribbons. Our calculations show that out-of-plane mechanical deformations have a strong influence on the band structures and transport characteristics of graphene nanoribbons. The computed I-V curves demonstrate that the electrical conductance of graphene nanoribbons is significantly affected by deformations. The relationship between the conductance and the compression ratio is found to be sensitive to the type of the nanoribbon. The results of our study indicate the possibility of mechanical control of the electronic and transport properties of graphene nanoribbons. |
| Keywords: | Density functional theory Electronic transport Conductance Graphene Graphene nanoribbons Mechanical deformation |
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