Band structure model of magnetic coupling in semiconductors
  We present a unified band structure model to explain magnetic ordering in Mn-doped semiconductors. This model is based on the $p$-$d$ and $d$-$d$ level repulsions between the Mn ions and host elements and can successfully explain magnetic ordering observed in all Mn doped II-VI and III-V semiconductors such as CdTe, GaAs, ZnO, and GaN. This model, therefore, provides a simple guideline for future band structure engineering of magnetic semiconductors. 
Gustavo M. Dalpian, Su-Huai Wei, X. G. Gong, Ant\^onio J. R. da Silva,   A. Fazzio