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Open Physics

formerly Central European Journal of Physics

Editor-in-Chief: Feng, Jonathan

Managing Editor: Lesna-Szreter, Paulina

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IMPACT FACTOR 2016 (Open Physics): 0.745
IMPACT FACTOR 2016 (Central European Journal of Physics): 0.765

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Volume 13, Issue 1 (Jan 2015)

Issues

Magnetic properties of co-modified Fe,N-TiO2 nanocomposites

Grzegorz Zolnierkiewicz
  • Department of Physics, West Pomeranian University of Technology, Al. Piastow 48, 70-311 Szczecin, Poland
  • Email:
/ Spiros Glenis
  • Department of Solid State Physics, University of Athens, Panepistimioupolis, GR-157 84 Athens, Greece
/ Niko Guskos
  • Department of Physics, West Pomeranian University of Technology, Al. Piastow 48, 70-311 Szczecin, Poland
/ Aleksander Guskos
  • Department of Physics, West Pomeranian University of Technology, Al. Piastow 48, 70-311 Szczecin, Poland
/ Janusz Typek
  • Department of Physics, West Pomeranian University of Technology, Al. Piastow 48, 70-311 Szczecin, Poland
/ Pawel Berczynski
  • Department of Physics, West Pomeranian University of Technology, Al. Piastow 48, 70-311 Szczecin, Poland
/ Diana Dolat
  • Department of Chemical and Environmental Engineering, West Pomeranian University of Technology, Al. Piastow 17, 70-310 Szczecin, Poland
/ Sylwia Mozia
  • Department of Chemical and Environmental Engineering, West Pomeranian University of Technology, Al. Piastow 17, 70-310 Szczecin, Poland
/ Antoni W. Morawski
  • Department of Chemical and Environmental Engineering, West Pomeranian University of Technology, Al. Piastow 17, 70-310 Szczecin, Poland
Published Online: 2014-11-03 | DOI: https://doi.org/10.1515/phys-2015-0009

Abstract

Iron and nitrogen co-modified titanium dioxide nanocomposites, nFe,N-TiO2 (where n = 1, 5 and 10 wt% of Fe), were investigated by detailed dc susceptibility and magnetization measurements. Different kinds of magnetic interactions were evidenced depending essentially on iron loading of TiO2. The coexistence of superparamagnetic, paramagnetic and ferromagnetic phases was identified at high temperatures. Strong antiferromagnetic interactions were observed below 50 K, where some part of the nanocomposite entered into a long range antiferromagnetic ordering. Antiferromagnetic interactions were attributed to the magnetic agglomerates of iron-based and trivalent iron ions in FeTiO3 phase,whereas ferromagnetic interactions stemmed from the F-center mediated bound magnetic polarons.

Keywords : titanium dioxide; magnetic property

PACS : 76.30.Fc; 81.07.Bc; 82.50.Hp

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About the article

Received: 2014-04-09

Accepted: 2014-07-28

Published Online: 2014-11-03

Published in Print: 2015-01-01



Citation Information: Open Physics, ISSN (Online) 2391-5471, DOI: https://doi.org/10.1515/phys-2015-0009. Export Citation

© 2015 N. Guskos et al.. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. (CC BY-NC-ND 3.0)

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