Effects of Sintering Temperature on Microstructural, Magnetic, and Impedance Spectroscopic Properties of Ni0.4Cd0.3Zn0.3Fe2O4 Ferrites

被引：0
作者：
Nesrine Mechi
Abdulrahman Mallah
Sobhi Hcini
Mohamed Lamjed Bouazizi
Michel Boudard
Abdessalem Dhahri
机构：
[1] University of Kairouan,Faculty of Science and Technology of Sidi Bouzid
[2] Qassim University,Department of Chemistry, College of Science
[3] Prince Sattam Bin Abdulaziz University,College of Engineering
[4] University of Grenoble Alpes,LMGP, CNRS
[5] University of Monastir,Faculty of Sciences of Monastir, Department of Physics, Laboratory of Physical Chemistry of Materials
[6] Umm Al-Qura University,Al
来源：
Journal of Superconductivity and Novel Magnetism | 2020年 / 33卷
关键词：
Ferrites; Sol-gel method; Rietveld refinement; Hysteresis loops; Electrical properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Ni0.4Cd0.3Zn0.3Fe2O4 ferrites have been prepared through the use of sol-gel method at 900 °C and 1100 °C. Rietveld refinements of XRD patterns indicate that the prepared samples crystallize in the cubic spinel structure. Lattice constant and grain size are found to increase with sintering temperature. Magnetic measurements show that the maximum magnetization (Ms) rises, whereas both coercivity (Hc) and remanence (Mr) decrease when increasing the sintering temperature. Frequency and temperature dependence of electrical conductivity, electrical modulus, and electrical impedance have been studied using impedance spectroscopy technique. As the sintering temperature increases, the conductivity of the samples increases. The variation of imaginary part of modulus (M″) displays the presence of an electrical relaxation phenomenon and non-Debye nature. Nyquist representations have been analyzed using an electrical equivalent circuit. The obtained results reveal that the conduction mechanism of the samples is achieved basically of the grain boundary contribution.
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页码：1547 / 1557
页数：10
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