Journal
PHYSICA B-CONDENSED MATTER
Volume 403, Issue 17, Pages 2828-2831Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2008.02.017
Keywords
donor; quantum dot
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The energy levels of an off-center hydrogenic donor confined by a spherical Gaussian potential have been calculated as a function of the potential radius for different donor position by exact diagonalization method. The results have clearly demonstrated the so-called quantum size effect. The binding energy is dependent on the dot radius R, the impurity ion distance D, and the confining potential depth V-0. (C) 2008 Elsevier B.V. All rights reserved.
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