Premium
Structural and Magnetic Properties of Y 3+ Doped Ni–Cu–Co Ferrites Prepared by Sol–Gel Auto‐Combustion Method
Author(s) -
Pan Xiaoguang,
Sun Aimin,
Han Yingqiang,
Zhang Wei,
Zhao Xiqian,
Zou Jide
Publication year - 2019
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201800511
Subject(s) - materials science , analytical chemistry (journal) , ferrite (magnet) , spinel , doping , fourier transform infrared spectroscopy , citric acid , magnetization , remanence , spectroscopy , infrared spectroscopy , nuclear magnetic resonance , magnetic field , chemistry , metallurgy , chemical engineering , physics , optoelectronics , organic chemistry , chromatography , quantum mechanics , engineering , composite material
In this work, rare earth Y 3+ ion doped Ni 0.2 Cu 0.2 Co 0.6 Fe 2−x Y x O 4 ( x = 0.0, 0.025, 0.05, 0.075, 0.1) ferrite nanoparticles are synthesized by sol–gel auto‐combustion technology. High purity metal nitrates and citric acid are used as precursor solutions, and citric acid is used as a complexing agent. The X‐ray diffraction (XRD) analysis, Fourier transform infrared (FT‐IR) spectroscopy, energy dispersive X‐ray (EDX) spectroscopy, and vibrating sample magnetometer (VSM) measurements are used to investigate the effect of Y 3+ doping on the structure and magnetic properties of the samples. The analysis of the XRD patterns confirms that all the samples showed cubic spinel structure. The FT‐IR also confirms the spinel structure of ferrite, and with the increase of Y 3+ ion content, the peak of the Fe–O bond moved to high frequency. It has been proved that the synthesized ferrite has pure phase and structure by EDX, and Y 3+ ‐doping is successfully achieved. The magnetic parameters of the samples are measured by VSM at room temperature with a maximum magnetic field of 1 T. By characterization with VSM it can be found that saturation magnetization and remanent magnetization increase first and then decrease with increasing doping amount of Y 3+ ions. Compared with pure sample and other doped samples, the best magnetic properties are obtained when the doping amount of Y 3+ ions is x = 0.025.