Band structure model of magnetic coupling in semiconductors

Gustavo M. Dalpian; Su-Huai Wei; X. G. Gong; Antônio J. R. da Silva; A. Fazzio

doi:10.1016/j.ssc.2006.03.002

paper

Band structure model of magnetic coupling in semiconductors

arXiv:cond-mat/0504084 · doi:10.1016/j.ssc.2006.03.002

Abstract

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.

4+ pages, 5 figures