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The RKKY coupling in diluted magnetic semiconductors

Werpachowska A.M., Wilamowski Z.

Materials Science Poland

2006

Vol. 24, No. 3

675--681

This paper is an attempt to modify the classic Ruderman-Kittel-Kasuya-Yosida (RKKY) model to allow an analysis of the experimental data of the magnetic resonance measurements. In our calculations, we follow the treatment of the original authors of the RKKY model but include the finite band splitting, ?, as a phenomenological parameter. The RKKY exchange is not anymore of Heisenberg type and an anisotropy induced by the direction of carrier magnetization occurs.