Magneto-Optical Properties of ZnO-Based DMSs

Each material has its own set of critical point energies reflecting its electronic band structure. The CP of the band structure will clearly show up in the MCD spectrum that provides a fingerprint for each material. This allows the identification of the material responsible for the observed MCD signal. 

9 Experimental Results on ZnO-Based Dilute Magnetic Semiconductors I 341 

On the experimental side, despite inordinate number of published papers, measurements other than those with SQUID magnetometers (which in and of itself is too sensitive and swayed by contamination/precipitates) are murky and thus do not confirm ferromagnetism. It is still not sufficiently clear if the uniformly doped host or some other phase or even defect-impurity complexes are responsible for the 

1 liii, C., Yun, F. and Morko H. (2005) Critical review of ferromagnetism in ZnO and GaN. Journal of Material Science Materials in Electronics (JMS, MEL), 16, 

2 Furdyna, J.K. (1988) Diluted magnetic semiconductors. Journal of Applied 

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