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2 Materials Science Poland

2 2006

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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.

Spintronics in semiconductors

Wilamowski Z., Werpachowska A.M.

Materials Science Poland

2006

Vol. 24, No. 3

803--808

For the last years spin effects in semiconductors have been of great interest not only in the context of solid state physics, but also for their potential usage in technology. In this paper we give a short review of spintronic materials, in which electron spin as an additional degree of freedom is exploited. Afterwards, we discuss the properties of classic, non-magnetic semiconductors, where the efforts are put on enriching the traditional semiconductor technology engaging the electrical effects of spin effects. Various phenomena and scientific state of the art is highlighte