We present a density functional study of Fe doped into the tetrahedral and octahedral cation sites of the wide-band-gap spinel ZnGa₂O₄. We calculate the electronic structure for different substitutions and discuss the magnetic and transport properties for each case considering different approximations for the exchange-correlation potential. We show that for certain doped cases, significant differences in the predicted behavior are obtained depending on the exchange-correlation potential adopted. Possible applications of the doped systems as magnetic semiconductors are outlined.
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Pisani et al. (2006) studied this question.
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