中国物理B ›› 2008, Vol. 17 ›› Issue (8): 3054-3057.doi: 10.1088/1674-1056/17/8/047

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Electronic states of InAs/GaAs tyre-shape quantum ring

王传道, 杨富华, 封松林   

  1. National Laboratory for Superlattices and Microstructures, Institute of Semiconductors,\\ Chinese Academy of Sciences, Beijing 100083, China
  • 收稿日期:2007-12-04 修回日期:2008-02-26 出版日期:2008-08-20 发布日期:2008-08-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60521001).

Electronic states of InAs/GaAs tyre-shape quantum ring

Wang Chuan-Dao(王传道)†, Yang Fu-Hua(杨富华), and Feng Song-Lin(封松林)   

  1. National Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
  • Received:2007-12-04 Revised:2008-02-26 Online:2008-08-20 Published:2008-08-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60521001).

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摘要： In the framework of the effective mass theory, this paper calculates the electron energy levels of an InAs/GaAs tyre-shape quantum ring (TSQR) by using the plane wave basis. The results show that the electron energy levels are sensitively dependent on the TSQR's section thickness $d$, and insensitively dependent on TSQR's section inner radius $R_1$ and TSQR's inner radius $R_2$. The model and results provide useful information for the design and fabrication of InAs/GaAs TSQRs.

关键词: tyre-shape quantum ring (TSQR), plan wave, energy level

Abstract: In the framework of the effective mass theory, this paper calculates the electron energy levels of an InAs/GaAs tyre-shape quantum ring (TSQR) by using the plane wave basis. The results show that the electron energy levels are sensitively dependent on the TSQR's section thickness $d$, and insensitively dependent on TSQR's section inner radius $R_1$ and TSQR's inner radius $R_2$. The model and results provide useful information for the design and fabrication of InAs/GaAs TSQRs.

Key words: tyre-shape quantum ring (TSQR), plan wave, energy level

中图分类号:  (Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems)

  • 73.21.-b
71.15.Ap (Basis sets (LCAO, plane-wave, APW, etc.) and related methodology (scattering methods, ASA, linearized methods, etc.))