Photoluminescence studies of giant Zeeman effect in MBE-grown cobalt-based dilute magnetic semiconductors
2014
Abstract This work is devoted to epitaxy and magnetooptical study of (Zn,Co)Te and (Cd,Co)Te dilute magnetic semiconductors. Giant Zeeman effect is observed in both reflectivity and photoluminescence measurements. Magnetoreflectivity is used to determine cobalt composition. Magnetophotoluminescence reveals quenching due to intra-ionic cobalt transitions. The quenching is more effective at zero magnetic field than at high magnetic field, and in (Cd,Co)Te comparing to (Zn,Co)Te.
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