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We have studied the magnetic properties of ZnO nanocrystals doped with Fe_2O_3 in the magnetic dopant range from 5 to 70 wt%. The nanocrystals were synthesized by wet chemical method. The detailed structural characterization was performed by means of X-ray diffraction and micro-Raman spectroscopy measurements. The results of systematic measurements of magnetic AC susceptibility as a function of temperature and frequency are presented. We observed different types of magnetic behavior. For ZnO samples doped with low content of Fe_2O_3, the results of low-field AC susceptibility are satisfactorily explained by superparamagnetic model including inter-particle interactions. With the increase of magnetic Fe_2O_3 content, the spin-glass-like behavior is observed.
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Volume
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689-691
Physical description
Dates
published
2011-05
Contributors
author
- Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
author
- Institute of Physics, Belgrade University, Pregrevica 118, 11080 Belgrade, Serbia
author
- Institute of Chemical and Environment Engineering, West Pomeranian University of Technology, K. Pułaskiego 10, 70-322 Szczecin, Poland
author
- Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
author
- Institute of Physics, Belgrade University, Pregrevica 118, 11080 Belgrade, Serbia
author
- Institute of Physics, Belgrade University, Pregrevica 118, 11080 Belgrade, Serbia
author
- Institute of Chemical and Environment Engineering, West Pomeranian University of Technology, K. Pułaskiego 10, 70-322 Szczecin, Poland
author
- Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
References
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Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv119n536kz