Correlated Doping in Semiconductors: The Role of Donors in III-V Diluted Magnetic Semiconductors

Details Correlated Doping in Semiconductors: The Role of Donors in III-V Diluted Magnetic Semiconductors Correlated Doping in Semiconductors: The Role of Donors in III-V Diluted Magnetic Semiconductors

2003-02-10

arxiv.org/abs/cond-mat/0302176v1

Acta Phys. Polon. A 102, 673 (2002)

Physics

Condensed Matter

Materials Science

8 pages, 2 figures, presented at the XXXI Int. School of Semiconducting Compounds, Jaszowiec 2002, Poland

Scientific paper

We investigate the compositional dependence of the total energy of the mixed crystals (Ga,Mn)As co-doped with As, Sn, and Zn. Using the ab initio LMTO-CPA method we find a correlation between the incorporation of acceptors (Mn, Zn) and donors (Sn, antisite As). In particular, the formation energy of As_Ga is reduced by approx. 0.1 eV in the presence of Mn, and vice versa. This leads to the self-compensating behavior of (Ga,Mn)As.

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