PARABOLIC QUANTUM-WELLS OF DILUTED MAGNETIC SEMICONDUCTOR CD1-XMNXTE

We report on the growth by molecular beam epitaxy of II-VI semiconduct or parabolic quantum wells. Cd1-xMnxTe diluted magnetic semiconductor was chosen for constructing these structures because of its extreme se nsitivity to the presence of a magnetic field. Photoluminescence excit ation spectra revealed several series of energetically equidistant pea ks due to interband optical transitions. The energy separation in a gi ven series scales proportionally to the inverse width of the quantum w ell as expected for a parabolic confining potential. Analysis of the s pectra made possible a model-independent determination of the valence band offset in CdTe/Cd1-xMnxTe. (C) 1996 American Institute of Physics .