Abstract
We investigated the transport and optical properties of diluted magnetic semiconductors theoretically by using a simple model where carriers move in a single band. In this model the carrier feels a nonmagnetic potential at a magnetic impurity site, and its spin interacts with the localized spins of the magnetic impurities through exchange interactions. The electronic states of a carrier were calculated by using the coherent potential approximation (CPA). The magnetism was investigated by minimizing the free-energy and the electrical conductivity was calculated by using the Kubo formula. We examined the results in several typical cases which correspond to (Ga1−xMn x )As with x = 0.05.
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Kagami, K., Takahashi, M. & Kubo, K. Transport and Optical Properties of Diluted Magnetic Semiconductors. J Supercond 18, 121–126 (2005). https://doi.org/10.1007/s10948-005-2162-8
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DOI: https://doi.org/10.1007/s10948-005-2162-8