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Noncollinear Ferromagnetism in (III,Mn)V Semiconductors

Schliemann, John ; MacDonald, A. H.


We investigate the stability of the collinear ferromagnetic state in kinetic exchange models for (III,Mn)V semiconductors with randomly distributed Mn ions. Our results suggest that noncollinear ferromagnetism is common to these semiconductor systems. The instability of the collinear state is due to long-range fluctuations involving a large fraction of the localized magnetic moments. We address ...


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