ABSTRACT
The yellow the orange band in the Zn(1−x)Mn(x)Se single crystal system is studied in the temperature range between 26 and 300 K, for six samples prepared by chemical transport with Mn content rations between 0.0008≤ x ≤0.038. The energy position of the yellow band has an anomalous behaviour for temperatures below 150 K that can be understood in terms of antiferromagnetic d-d interactions of the Mn2+ ion. This behaviour is observed for the first time for samples with concentrations below x=0.5. The position of the orange band moves towards lower energy as the temperature increases indicating the band might be attributed to a donor-acceptor transition.
