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Topological structure effect on far-infrared spectra in a GaAs/InAs nanoring |
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| Authors: | Gu Li-Ying Li Yan-Fang Chu Wei-Dong and Wei Ying-Hui |
| Affiliation: | College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China |
| Abstract: | On the basis of the growth mechanism of a GaAs/InAs nanoring, we propose a fine model which reflects the confinement details of real nanoring. Through calculations of the two-electron energy and far-infrared (FIR) spectra, we find that the ring topological structure and electron-electron interaction have great influence on the FIR spectra. The two unknown transition peaks in the experiment are determined theoretically. The theoretical results are in good agreement with the experiments. |
| Keywords: | nanoring topological structure far-infrared spectrum confinement potential |
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