Cation distribution and magnetism study in the Mg0.5Ni0.5NdxFe2-xO4(x=0, 0.01, 0.03, 0.05) spinel system based on Mo<spacing diaeresis>ssbauer spectroscopy

被引：0
|
作者：
Zhou, Le [1 ]
Wu, Yiren [1 ]
Yang, Jiangbo [1 ]
Li, Zheng [1 ]
Lu, Zeyi [1 ]
Liu, Min [1 ,2 ]
机构：
[1] Univ South China, Coll Nucl Sci & Technol, Hengyang 421001, Peoples R China
[2] Zhuhai Tsinghua Univ, Res Inst Innovat Ctr, 101 Univ Ave, Zhuhai 519000, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2025年 / 704卷
基金：
中国国家自然科学基金;
关键词：
Mg-Ni spinel ferrite; Nd3+doped; Mo<spacing diaeresis>ssbauer spectra; Magnetic properties; NANOPARTICLES;
D O I：
10.1016/j.physb.2025.417055
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
This study successfully synthesized Mg0.5Ni0.5Fe2-xNdxO4(x = 0, 0.01, 0.03, 0.05) spinel ferrites using the sol-gel method. X-ray diffraction analysis revealed that doping with Nd3+ enhanced lattice distortion, and a secondary NdFeO3 phase emerged at higher concentrations. Mo<spacing diaeresis>ssbauer spectroscopy analysis revealed that Nd3+ doping modified the distribution of metal cations within the samples and yielded theoretical values for the samples' magnetic moments. Magnetic analysis indicated that magnetic parameters, including saturation magnetization, remanence, and coercivity, displayed irregular variations with increasing Nd3+ concentration, peaking at x = 0.03, while the presence of the NdFeO3 secondary phase induced abnormal changes. These irregular variations may be attributed to the combined effects of microscopic magnetic mechanisms regulating the sample's magnetic response, such as lattice structure, metal cation distribution, the Yafet-Kittel spin canting effect, and the presence of the NdFeO3 secondary phase.
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页数：7
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