Structure and Magnetic Properties of Ce-Substituted Yttrium Iron Garnet Prepared by Conventional Sintering Techniques

被引:0
作者
Tao Shen
Hailong Dai
Mingxin Song
Hongchen Liu
Xinlao Wei
机构
[1] Harbin University of Science and Technology,Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education
[2] Harbin University of Science and Technology,College of Applied Sciences
[3] Harbin Institute of Technology,School of Electrical Engineering and Automation
来源
Journal of Superconductivity and Novel Magnetism | 2017年 / 30卷
关键词
Yttrium iron garnet; Magnetic material. Conventional sintering technique; X-ray powder diffraction;
D O I
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中图分类号
学科分类号
摘要
Y3−xCexFe5O12 (CeYIG) ceramics, with x = 0, 0.15, 0.25, 0.35, 0.45, and 0.5, were fabricated by a conventional ceramic sintering technique. We studied the structures and magnetic fields of a series of CeYIG ceramics using X-ray powder diffraction, a scanning electron microscope, and a superconducting quantum interference device magnetometer. Findings showed that the substitution limit of the concentration of Ce3+ ions in the yttrium iron garnet structure was approximately x = 0.25. An extra CeO2 phase was detected in the ceramic when the addition of CeO2 content overtook the limit. The lattice constants and relative densities increased by increasing the Ce3+ contents in the ceramics. First, the saturation magnetization increased gradually with increases in the substitute concentration of Ce3+ ions and then decreased gradually when x = 0.35, 0.45, and 0.5. Overall, this study showed that the Y3−xCexFe5O12 material with x ≤ 0.15 exhibited excellent magnetic properties. Hence, the material show promise for magneto-optical and microwave communication applications.
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页码:937 / 941
页数:4
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