Energy levels and far-infrared spectroscopy for two electrons in a nanoscopic semiconductor ring

被引:40
作者
Hu, H [1 ]
Zhu, JL
Xiong, JT
机构
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China
关键词
D O I
10.1103/PhysRevB.62.16777
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effects of electron-electron interaction of a two-electron nanoscopic ring on the energy levels and far-infrared spectroscopy have been investigated based on a model calculation that is performed within the exactly numerical diagonalization. It is found that the interaction changes the energy spectra dramatically, and also shows significant influence on the far-infrared spectroscopy. The crossings between the lowest spin-singlet and triplet states induced by the Coulomb interaction are clearly revealed. Our results are related to the experiment recently carried out by Lorke et al.
引用
收藏
页码:16777 / 16783
页数:7
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