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Н. В. Ткач, В. А. Головацкий, И. Б. Франкив
«Примесные состояния электронов в сферических наносистемах»
783–794 (2011)

PACS numbers: 73.20.Hb, 73.21.La, 78.67.Hc

Electron spectrum within the spherical quantum dot with one and two hydrogen-like donor impurities is investigated by the effective mass approximation. Accuracy evaluation for the electron energy spectrum and wave functions obtained by the variational method and the perturbation theory is performed. The results of the variational method agree with an exact solu-tion of the Schrodinger equation for the on-centre donor impu-rity and with a result obtained by the perturbation theory for an inner impurity. The ground-state energy of an electron co-incides with a well-known energy of the doubly ionized donor impurity.