The Nature of the magnetism-promoting hole state in the prototype magnetic semiconductor GaAs: Mn

V. Fleurov; K. Kikoin; A. Zunger

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arXiv · 1208.2811

The Nature of the magnetism-promoting hole state in the prototype magnetic semiconductor GaAs: Mn

V. Fleurov·K. Kikoin·A. Zunger

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Abstract

Recent experiments [1] suggest that the ferromagnetism (FM) in GaAs: Mn is determined by the impurity band rather than holes in the valence band. We discuss here the physical mechanism of FM mediated by the carriers in impurity band, where the Mn d-level play a crucial role. The theory is based on the first principle approach.

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V. Fleurov, K. Kikoin, A. Zunger. 2012-08-14. The Nature of the magnetism-promoting hole state in the prototype magnetic semiconductor GaAs: Mn. https://arxiv.org/abs/1208.2811

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