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Modulated Reflectance Spectroscopy of CdTe-Cd1−xMnxTe Multiple Quantum Wells and Superlattices Grown by Pulsed Laser Evaporation and Epitaxy

Published online by Cambridge University Press:  01 January 1992

D. Labrie  and
J.J. Dubowski
D. Labrie
Affiliation:
Department of Physics, Dalhousie University, Halifax, N.S., Canada B3H 3J5
J.J. Dubowski
Affiliation:
Institute for Microstructural Sciences, National Research Council of Canada, Ottawa, Ontario, Canada KlA 0R6
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Abstract

Piezoreflectance and photoreflectance spectroscopies have been used to investigate the electronic properties of CdTe-Cd1-xMnxTe (x − 0.10) multiple quantum well and superlattice structures grown by Pulsed Laser Evaporation and Epitaxy (PLEE). The structures with the CdTe well widths from 54Å to 245Å have been investigated. The spectra exhibit a series of signatures which are attributed to free exciton transitions occuring between the heavy-hole and light-hole bands and the upper electron subbands within the CdTe well layers. The spectra indicate that the PLEE grown structures are of an excellent quality typical of the best currently available material.

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References

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