Multiple charging of InAs/GaAs quantum dots by electrons or holes: addition energies and ground-state configurations

Details Multiple charging of InAs/GaAs quantum dots by electrons or holes: addition energies and ground-state configurations Multiple charging of InAs/GaAs quantum dots by electrons or holes: addition energies and ground-state configurations

2005-11-02

arxiv.org/abs/cond-mat/0511041v1

Physics

Condensed Matter

Materials Science

14 pages, 9 figures

Scientific paper

10.1103/PhysRevB.73.115324

Atomistic pseudopotential plus configuration interaction calculations of the energy needed to charge dots by either electrons or holes are described, and contrasted with the widely used, but highly simplified two-dimensional parabolic effective mass approximation (2D-EMA). Substantial discrepancies are found, especially for holes, regarding the stable electronic configuration and filling sequence which defies both Hund's rule and the Aufbau principle.

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