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- Title
Investigation on nickel concentration dependence structural, dielectric and magnetic properties of Ni-Zn ferrites.
- Authors
Luo, G. S.; Zhou, W. P.; Li, J. D.; Jiang, G. W.; Tang, S. L.; Du, Y. W.
- Abstract
The structural, electrical and magnetic properties of nickel substituted zinc ferrites (NixZn1−xFe2O4, x = 0.3, 0.4, 0.5, 0.6 and 0.7) have been investigated. The phase purity of these samples is characterized by X-ray diffraction method, which indicates that all the samples are single phase in nature. The elements compositions analyzed by EDS are well matched with the expected stoichiometric ratio and are homogenous distributed in samples. The frequency dependence of dielectric constant curve displays a normal dielectric behavior, while the dielectric loss is found to be abnormal, exhibiting a loss peak at certain frequency for some of the Ni-Zn ferrites. The M-H curves for all samples exhibit typical soft ferromagnetic characteristics. The saturation magnetization as a function of Ni2+ concentration is firstly strengthened and then weakened, reaching a maximum value of 80.23 emu/g at x = 0.5. The Ni2+ concentration dependence magnetization can be understood by the enhancement of magnetic exchange interaction for low substitution content and the decrease of net magnetic moment for high substitution content.
- Subjects
FERRITES; NICKEL; GYRATORS; TRANSITION metals; MAGNETIZATION
- Publication
Journal of Materials Science: Materials in Electronics, 2018, Vol 29, Issue 14, p12489
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-018-9367-7