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Electron magnetic resonance and Mössbauer studies on iron doped SnO 2 nanoparticles

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Abstract

Iron doped (0.25–7.5% molar) hydrothermal nano-SnO2 was characterized by electron magnetic resonance (EMR) and Mössbauer spectroscopies. Only a small fraction of transition metal ions are in magnetic ordered state, contrary to the similar crystallographic compound TiO2. Temperature dependences of spectra suggest that by increasing iron concentration, or annealing temperature, iron ions migrate to nanoparticles surfaces forming disordered iron oxides.

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Authors and Affiliations

  1. National Institute of Materials Physics, 077125, Magurele-Bucharest, Romania

    Maria Nicoleta Grecu, Serban Gr. Constantinescu, Daniela Ghica, Doina Tǎrǎbǎşanu-Mihaila & Lucian Diamandescu

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  1. Maria Nicoleta Grecu
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  2. Serban Gr. Constantinescu
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  3. Daniela Ghica
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  4. Doina Tǎrǎbǎşanu-Mihaila
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  5. Lucian Diamandescu
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Correspondence to Maria Nicoleta Grecu.

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Grecu, M.N., Constantinescu, S.G., Ghica, D. et al. Electron magnetic resonance and Mössbauer studies on iron doped SnO 2 nanoparticles. Hyperfine Interact 205, 111–115 (2012). https://doi.org/10.1007/s10751-011-0447-9

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  • DOI: https://doi.org/10.1007/s10751-011-0447-9

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