Ni/Zn ratio and La substitution effect on selected structural and magnetic properties of NiZn ferrites.

Autor: Šoka M; Institute of Electrical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, 841 04 Bratislava, Slovakia., Ušáková M; Institute of Electrical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, 841 04 Bratislava, Slovakia., Dosoudil R; Institute of Electrical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, 841 04 Bratislava, Slovakia., Jančárik V; Institute of Electrical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, 841 04 Bratislava, Slovakia., Ušák E; Institute of Electrical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, 841 04 Bratislava, Slovakia., Dobročka E; Institute of Electrical Engineering, Slovak Academy of Sciences, 841 04 Bratislava, Slovakia.
Jazyk: angličtina
Zdroj: Journal of physics. Condensed matter : an Institute of Physics journal [J Phys Condens Matter] 2024 Apr 04; Vol. 36 (26). Date of Electronic Publication: 2024 Apr 04.
DOI: 10.1088/1361-648X/ad3791
Abstrakt: Auto-combustion process was used for synthetization of Ni 1- x Zn x Fe 2 O 4 and Ni 1- x Zn x La 0.02 Fe 1.98 O 4 ( x = 0, 0.3, 0.5, 0.64 and 0.7) ferrite samples to investigate their structural and selected magnetic properties. Standard characterization method such as x-ray diffraction, magnetic susceptibility temperature dependencies measurement, low-frequency hysteresis loops recording and complex permeability spectra were used on the research samples. The monophasic ferrite compounds have been prepared. For all samples, with an increase of zinc ions in the content, a decrease of the Curie temperature and coercive field value and an increase of the complex permeability real part value were observed, together with a shift of the ferrimagnetic resonance frequency value to lower ones. Substituted samples showed some differences, such as slightly higher values of the Curie temperature and coercive field, and at the same time slightly lower values of the complex permeability real part and higher values of the ferrimagnetic resonance frequency.
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Databáze: MEDLINE
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