Electronic structure of semimagnetic semiconductor heterostructures

An extended k.p model for zincblende semiconductor heterostructures is used to calculate the sub-band structure as a function of the parallel momentum and the Landau levels as a function of applied magnetic field, of semimagnetic Cd(Mn)Te-CdTe quantum wells. The model takes into account the full degeneracy, conduction-valence band coupling, valence band mixing, warping and anisotropy, and effective mass discontinuities at each heterointerface. The effect of sample magnetisation on Landau levels is discussed.