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Effects of Fe doping and Fe–N-codoping on magnetic properties of SnO2 prepared by chemical co-precipitation
- Source :
-
Journal of Magnetism & Magnetic Materials . Apr2011, Vol. 323 Issue 8, p1083-1087. 5p. - Publication Year :
- 2011
-
Abstract
- Abstract: The effects of Fe-doping and Fe–N-codoping on the magnetic properties of SnO2, prepared by chemical co-precipitation technique, are investigated in details. We found that the paramagnetism is the dominant magnetic interaction in Fe doped SnO2. A weak antiferromagnetic coupling between Fe2+ ions is also confirmed through Zero field-cooled (ZFC) and field-cooled (FC) magnetization studies. On the other hand, hystersis behavior is observed for Fe–N-codoped SnO2 samples with coercivity H c∼420 and 352Oe for x=0.05 and 0.10, respectively. As no other secondary or impurity phase is detected by XRD study and the presence of N is confirmed by EDX analysis, this observed ferromagnetism is originated due to the substitution of N in Sn1−x Fe x O2. N doping at the oxygen site can be regarded as defect and introduces a hole in this system. As a result, a hole-induced ferromagnetism might be the origin of the observed ferromagnetism in Fe–N-codoped SnO2 samples. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03048853
- Volume :
- 323
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Journal of Magnetism & Magnetic Materials
- Publication Type :
- Academic Journal
- Accession number :
- 57511244
- Full Text :
- https://doi.org/10.1016/j.jmmm.2010.12.018