Abstract
Fe/Ga- and Fe/Zn-codoped titanium oxide nanoparticles were prepared by co-precipitation technique. The samples were characterized by several methods: energy-dispersive X‐ray fluorescence, X‐Ray Diffraction, UV–visible absorption, and magnetization methods. The host Fe-doped TiO2 nanoparticles were co-doped either with Ga3+ or Zn2+ ions aiming to compare their effects on the possible creation of long-range (LR) interaction between Fe2+−Fe2+ dopant ions. The hydrogenation of the samples was necessary to fabricate the dilute magnetic semiconductor based on TiO2 by its creation of O-vacancies (VO). It was established that Zn/VO defects are energetically favourable for the LR Fe3+−Fe3+ ferromagnetic coupling in Fe/Zn-codoped anatase TiO2 by the superexchange interaction through Zn ions.
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Dakhel, A.A. Microstructural, optical and magnetic properties of TiO2:Fe:M (M = Ga, Zn) dilute magnetic semiconductor nanoparticles: a comparative study. Appl. Phys. A 127, 440 (2021). https://doi.org/10.1007/s00339-021-04588-5
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DOI: https://doi.org/10.1007/s00339-021-04588-5