OPTICALLY DETECTED MAGNETIC-RESONANCE STUDIES OF CD1-XMNXTE (X = 0.095, 0.007)

The dominant mechanism responsible for the optical detection of the Mn 2+ magnetic resonance in Cd1-xMnxTe (x = 0.095, 0.007) is explained. B y either change of the external magnetic field or by setting the condi tions for the Mn2+ magnetic resonance, we could change the relative ef ficiencies of the two competing excitonic recombination processes. By lowering magnetization at the magnetic resonance, recombination via th e acceptor bound exciton channel, which is mainly nonradiative, is enh anced. Then, a large up to 50% decrease in the total photoluminescence efficiency was observed in the optically detected magnetic resonance experiment. Such observation allows for verification of the large effi ciency of the Auger-type transition responsible for the nonradiative d ecay of the acceptor bound exciton.