Theoretical interpretation of the experimental electronic structure of lens shaped, self-assembled InAs/GaAs quantum dots

Details Theoretical interpretation of the experimental electronic structure of lens shaped, self-assembled InAs/GaAs quantum dots Theoretical interpretation of the experimental electronic structure of lens shaped, self-assembled InAs/GaAs quantum dots

2000-03-03

arxiv.org/abs/cond-mat/0003055v1

Physics

Condensed Matter

Materials Science

16 pages, 5 figures. Submitted to Physical Review B

Scientific paper

10.1103/PhysRevB.62.12963

We adopt an atomistic pseudopotential description of the electronic structure of self-assembled, lens shaped InAs quantum dots within the ``linear combination of bulk bands'' method. We present a detailed comparison with experiment, including quantites such as the single particle electron and hole energy level spacings, the excitonic band gap, the electron-electron, hole-hole and electron hole Coulomb energies and the optical polarization anisotropy. We find a generally good agreement, which is improved even further for a dot composition where some Ga has diffused into the dots.

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