Vol. 21 No. 2 (2011)
Papers

Two Band Model for Diluted Magnetic Semiconductors: Study of the Ferromagnetic Transition Temperature

Published 28-06-2011

How to Cite

Thai, V. K., & Tuan, H. A. (2011). Two Band Model for Diluted Magnetic Semiconductors: Study of the Ferromagnetic Transition Temperature. Communications in Physics, 21(2), 125. https://doi.org/10.15625/0868-3166/21/2/106

Abstract

The ferromagnetic transition temperature (Tc) of a two band model for diluted magnetic semiconductors (DMS) is calculated by using the coherent potential approximation (CPA). It is shown that Tc is strongly parameter dependent on density of the carriers, magnetic coupling constants, and the hopping terms. The maximal Tc of the two band model is found when both impurity bands fully overlap and this value is approximately twice larger than the highest Tc obtained in the single band model.

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