Single-electron charging spectra: from natural to artificial atoms |
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Authors: | B Szafran P S
p J Adamowski S Bednarek |
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Institution: | Faculty of Physics and Nuclear Techniques, AGH – University of Science and Technology, al. Mickiewicza 30, Kraków 30-059, Poland |
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Abstract: | We present a theoretical study of the charging spectra in natural and artificial atoms. We apply a model electrostatic potential created by a homogenously charged sphere. This model potential allows for a continuous passage from the Coulomb potential of the nucleus to parabolic confinement potential of quantum dots. We consider electron systems with N=1,…,10 electrons with the use of the Hartree–Fock method. We discuss the qualitative similarities and differences between the chemical potential spectrum of electron systems bound to nucleus and confined in quantum dots. |
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Keywords: | Quantum dots Artificial atoms Hartree– Fock method |
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