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Effects of impurity on negatively charged exciton on quantum ring

Wu Hong

Effects of impurity on negatively charged exciton on quantum ring

Wu Hong
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  • Received Date:  07 February 2010
  • Accepted Date:  05 July 2010
  • Published Online:  15 December 2010

Effects of impurity on negatively charged exciton on quantum ring

  • 1. Department of Physics, Jimei University, Xiamen 361021, China

Abstract: The effects of the impurity on the energy-optical spectrum and the Aharonov-Bohm oscillation of the negatively charged exciton X- on the quantum ring are discussed. In the present case, the total orbital angular momentum is not conserved. To find the wave function, a set of basic functions is formed according to their total orbital angular momenta. Then the typical diagonalization method is used to find the eigenvalues and the eigen functions of the system. The calculated results are satisfactory. When the impurities are not in the x-y plane, the calculation skill using the equivalent charge transformation formula becomes simple and charts are also discussed.

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