Abstract
Magnetophotoluminescence- and photoluminescence-excitation-spectroscopy experiments are performed up to 5 T at 1.7 K in a 〈111〉-grown CdTe/${\mathrm{Cd}}_{0.93}$${\mathrm{Mn}}_{0.07}$Te superlattice. The results are compared with calculations of the level energies and of the exciton binding energies, that include field-induced negative offsets. A type-I\ensuremath{\rightarrow}type-II transition is evidenced near 2 T and a value of 15%--20% of the bandgap energy difference is deduced for the valence-band offset.
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