Abstract
The electronic band-edge spectrum of magnetic semiconductor quantum wells containing a diluted magnetic semiconductor as one of the constituents is studied within the envelope-function formalism. The effects of Mn d electrons are explicitly included in a Hamiltonian which in the first approximation of perturbation theory is shown to be reduced to an effective Kane model. The hybridization leads to a spin-splitting effect. The results are applied to the system The spin-splitting effect is studied as a function of external magnetic field, well width, valence band offset and fraction of the magnetic atoms. The numerical results are in accord with experimental data.
- Received 4 May 2001
DOI:https://doi.org/10.1103/PhysRevB.66.155324
©2002 American Physical Society