中国物理B ›› 2000, Vol. 9 ›› Issue (8): 619-623.doi: 10.1088/1009-1963/9/8/013

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NEGATIVE DONOR CENTER QUANTUM DOTS IN MAGNETIC FIELDS

解文方   

  1. Department of Physics, Guangzhou Normal University Guangzhou 510405, China
  • 收稿日期:1999-12-14 修回日期:2000-03-17 出版日期:2000-08-15 发布日期:2005-06-10
  • 基金资助:
    Project supported by the National Natural Foundation of China (Grant No. 19975013), and the Naturl Science Foundation of Guangdong Province, China.

NEGATIVE DONOR CENTER QUANTUM DOTS IN MAGNETIC FIELDS

Xie Wen-fang (解文方)   

  1. Department of Physics, Guangzhou Normal University Guangzhou 510405, China
  • Received:1999-12-14 Revised:2000-03-17 Online:2000-08-15 Published:2005-06-10
  • Supported by:
    Project supported by the National Natural Foundation of China (Grant No. 19975013), and the Naturl Science Foundation of Guangdong Province, China.

摘要: The method of few-body physics is applied to treat a D-<\sup> center quantum dot system in a magnetic field. The magnetic field is applied in the z direction. Using this method, we investigate the energy spectra of low-lying states of D-<\sup> center quantum dots as a function of magnetic field. The dependence of the binding energies of the ground-state of the D-<\sup> center are calculated as a function of the dot radius with a few values of the magnetic field strength and compared with other results.

Abstract: The method of few-body physics is applied to treat a D- center quantum dot system in a magnetic field. The magnetic field is applied in the z direction. Using this method, we investigate the energy spectra of low-lying states of D- center quantum dots as a function of magnetic field. The dependence of the binding energies of the ground-state of the D- center are calculated as a function of the dot radius with a few values of the magnetic field strength and compared with other results.

Key words: negative donor center, quantum dot, few-body physics.

中图分类号:  (Fermi surface: calculations and measurements; effective mass, g factor)

  • 71.18.+y
71.55.-i (Impurity and defect levels) 77.22.Ch (Permittivity (dielectric function))