Carrier induced ferromagnetic interactions and transport properties of p-Zn(1−x)MnxTe epilayers

Abstract
The conductivity and Hall effect of p-type doped Zn (1−x) Mn x Te layers are described and analyzed in terms of a two-fluid model where part of the carriers are weakly localized as bound magnetic polarons. At low temperature, the Hall effect is dominated by the spin-dependent component (extraordinary Hall effect), in good agreement with a crude estimate taking into account the properties of the valence band. The long range ferromagnetic interaction appears to be induced by the weakly localized holes.
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