Electronic structure of strained InP/GaInP quantum dots

Details Electronic structure of strained InP/GaInP quantum dots Electronic structure of strained InP/GaInP quantum dots

1997-05-28

arxiv.org/abs/cond-mat/9705291v3

Physics

Condensed Matter

Materials Science

Typographical error corrected in strain Hamiltonian

Scientific paper

10.1103/PhysRevB.56.10404

We calculate the electronic structure of nm scale InP islands embedded in $Ga_{0.51}In_{0.49}P$. The calculations are done in the envelope approximation and include the effects of strain, piezoelectric polarization, and mixing among 6 valence bands. The electrons are confined within the entire island, while the holes are confined to strain induced pockets. One pocket forms a ring at the bottom of the island near the substrate interface, while the other is above the island in the GaInP. The two sets of hole states are decoupled. Polarization dependent dipole matrix elements are calculated for both types of hole states.

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