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Ab initio study of ferromagnetism induced by magnetic impurities in rutile TiO2

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 نشر من قبل Mario Renter\\'ia
 تاريخ النشر 2008
  مجال البحث فيزياء
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 تأليف L.A. Errico -




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Using the first-principles density-functional approach, magnetic properties of Mn-, Fe-, Co-, and Ni-doped rutile TiO2 were investigated for two different impurity concentrations (25% and 6.25%). Calculations were performed with the Full-Potential Linearized-Augmented Plane Waves (FLAPW) method, assuming that the magnetic impurities substitutionally replace the Ti ions. Our results show that the systems (with the exception of Ni-doped TiO2) are ferromagnetic. We also found that polarization mainly occurs at the impurity sites, and the magnetic moments of the impurities are independent of the impurity concentration.



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