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Synthesis and Magnetic Properties of Mn-Doped and SnO2 Nanoparticles

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Abstract

This paper reports the synthesis of Sn1−x Mn x O2 (for x=0, 0.01, 0.05 and 0.10) nanoparticles using the co-precipitation method. X-ray diffraction (XRD) results show that all samples are single phase with tetragonal crystalline structure. Rietveld refinements from XRD patterns show that the samples present particle average sizes of 4–30 nm confirmed by scanning electron microscopy. Magnetization results for SnO2 nanoparticles at 5% and 10% of Mn synthesized at 800 °C exhibit a ferromagnetic behavior at room temperature and an increasing of the magnetization for increasing doping concentration. On the other hand, samples synthesized at 300 °C are paramagnetic.

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Acknowledgements

The authors are grateful for access to the facilities of Laboratório Nacional de Luz Sincrotron (LNLS) for the use of Laboratório de Microscopia Eletrônica (SEM micrographs on proposal FEG-8888/10079). The authors thank Brazilian agency CNPq and FAPITEC for financial support.

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Authors and Affiliations

  1. Departamento de Física, Universidade Federal de Sergipe, Campus Prof. Alberto Carvalho, 49500-000, Itabaiana, SE, Brasil

    T. R. Cunha, I. M. Costa, J. G. S. Duque & C. T. Meneses

  2. Departamento de Física, Universidade Federal de Sergipe, Campus Prof. José Aluísio Campos, 49100-000, São Cristóvão, SE, Brasil

    R. J. S. Lima

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  1. T. R. Cunha
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  2. I. M. Costa
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  3. R. J. S. Lima
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  4. J. G. S. Duque
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  5. C. T. Meneses
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Correspondence to C. T. Meneses.

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Cunha, T.R., Costa, I.M., Lima, R.J.S. et al. Synthesis and Magnetic Properties of Mn-Doped and SnO2 Nanoparticles. J Supercond Nov Magn 26, 2299–2302 (2013). https://doi.org/10.1007/s10948-012-1479-3

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  • DOI: https://doi.org/10.1007/s10948-012-1479-3

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