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Magnetic field-induced type I → type II transition in a semimagneticCdTe Cd 0.93 Mn 0.07 Tesuperlattice

Authors
Journal
Superlattices and Microstructures
0749-6036
Publisher
Elsevier
Publication Date
Volume
8
Issue
2
Identifiers
DOI: 10.1016/0749-6036(90)90085-l

Abstract

Abstract Magneto-photoluminescence and photoluminescence excitation spectroscopy experiments are performed up to 5 Teslas at 1.7 K on a 〈111〉 grown CdTe/Cd 0.93Mn 0.07Te superlattice. The results are compared with calculations of the energy levels and of the exciton binding energies, including field-induced negative offsets. A type I → type II transition is evidenced near 2 Teslas and a value of 15–20% of the bandgap energy difference is deduced for the valence band offset.

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