中国物理B ›› 2008, Vol. 17 ›› Issue (4): 1400-1404.doi: 10.1088/1674-1056/17/4/041

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Evaluation of electron--electron interactions in coupled quantum dots by using far-infrared spectra

董庆瑞   

  1. College of Physics and Electronics, Shandong Normal University, Jinan 250014, China
  • 收稿日期:2007-09-17 修回日期:2007-11-19 出版日期:2008-04-20 发布日期:2008-04-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10674084).

Evaluation of electron--electron interactions in coupled quantum dots by using far-infrared spectra

Dong Qing-Rui(董庆瑞)†   

  1. College of Physics and Electronics, Shandong Normal University, Jinan 250014, China
  • Received:2007-09-17 Revised:2007-11-19 Online:2008-04-20 Published:2008-04-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10674084).

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摘要： We have studied the far-infrared spectra of two-electron vertically coupled quantum dots in an axial magnetic field by exact diagonalization. The calculated results show an obvious difference in role between the interactions for spin $S=1$ and for spin $S=0$. The results support the possibility to evaluate the interactions by far-infrared spectroscopy in vertically coupled quantum dots.

Abstract: We have studied the far-infrared spectra of two-electron vertically coupled quantum dots in an axial magnetic field by exact diagonalization. The calculated results show an obvious difference in role between the interactions for spin $S=1$ and for spin $S=0$. The results support the possibility to evaluate the interactions by far-infrared spectroscopy in vertically coupled quantum dots.

Key words: coupled quantum dots, electron--electron interactions, far-infrared spectra

中图分类号:  (Quantum dots)

  • 73.21.La
78.30.Fs (III-V and II-VI semiconductors) 78.67.Hc (Quantum dots)