Abstract
We present a variational calculation for the ground state of the double donor in a spherical GaAs–Ga1−x Al x As quantum dot. The binding energies for the ionized and neutral centres are calculated for several barrier height values as a function of the radius of the dot. Compared with a square well structure, there is a stronger confinement and a larger binding energy for the double donors in a spherical quantum dot.
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Niculescu, E.C., Niculescu, A. Double donor in a spherical quantum dot. Czechoslovak Journal of Physics 47, 1031–1035 (1997). https://doi.org/10.1023/A:1021137423872
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DOI: https://doi.org/10.1023/A:1021137423872