Abstract In this paper, an exciton trapped by a Gaussian confining potential quantum dot has been investigated. Calculations are made by using the method of numerical diagonalization of Hamiltonian in the effective-mass approximation. The dependences of binding energies of the ground state and the first excited state on the size of the confining potential and the strength of the magnetic field are analysed explicitly.
(Fermi surface: calculations and measurements; effective mass, g factor)
Fund: Project supported by the Natural Science Foundation of Guangdong Province, China (Grant No 04009519) and the National Natural Science Foundation of China (Grant No 10475021).
Cite this article:
Xie Wen-Fang (解文方) Binding energies of an exciton in a Gaussian potential quantum dot 2006 Chinese Physics 15 203
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