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Plot of the electron energy along the axis for two different impurity positions. Note that and . Inset: schematical representation of the studied system.
Energy spectrum vs the donor position with respect to the metallic interface. The values for the 3D hydrogen atom are indicated at the right of the figure. Inset: box region indicated by the dotted curves in the main figure.
Probability density in (a), (b), and (c) as indicated in the inset of Fig. 2 as function of the distance from the metallic interface. The top three figures correspond to the densities of the (2,0,0) energy level, whereas the three figures at the bottom correspond to the (2,1,0) energy level. The donor position is indicated by the white square. Blue (red) areas represent low (high) probabilities. The white area represents zero probability.
Expectation value of the electron position along the axis, , as a function of the electric field for different impurity positions. Inset: expectation value of the electron wave function extending along the plane, , as a function of the electric field for different impurity positions.
Log-log plot of the ground state energy levels for as a function of the electric field for different impurity positions. Inset: same but now with a linear scale for the energy.
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