Topological structure effect on far-infrared spectra in a GaAs/InAs nanoring |
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| Authors: | Gu Li-Ying a Li Yan-Fang ab Chu Wei-Dong b and Wei Ying-Hui |
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| Institution: | a) a) College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China b) Institute of Applied Physics and Computational Mathematics,Beijing 100088,China |
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| 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. |
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| Keywords: | nanoring topological structure far-infrared spectrum confinement potential |
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