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Effect of Cadmium Substitution on Structural and Magnetic Properties of Nano Sized Nickel Ferrite
Sanjay Pralhadrao Jadhav1, Bhagwan Ghanshamji Toksha2, Kamalakar Marutirao Jadhav*2, Narayan Dadarao Shinde3
1.Department of Chemistry, Adarsh College, Omerga, India;2.Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431004, India;3.Postgraduate Department of Chemistry and Research Centre, S. C. S. College, Omerga 413606, India
Abstract:
The structure and crystal phase of the nanocrystalline powders of Ni1-xCdxFe2O4 (0≤x≤0.5) mixed ferrite, synthesized by wet chemical co-precipitation method, were characterized by X-ray diffraction. Results showed that the lattice parameter increased with increasing Cd concentration. Microstructure was studied by scanning electron microscopy. TG/DTA stud-ies were carried out on co-precipitated sulphate complexes. These studies revealed the low ferritization temperature (650 oC) of the ferrite system synthesized by presently adopted route of synthesis and occurrence of simultaneous decomposition and ferritization processes.Further studies by infrared spectroscopy were also conducted. Moreover, magnetic properties of the prepared nanoparticles were studied by magnetization and a.c. susceptibility mea-surements. The response of prepared Ni1-xCdxFe2O4 mixed ferrites to magnetic field was investigated. Results show that, magnetic susceptibility, Curie temperature, and effective magnetic moment decreased as the Cd content increases.
Key words:  Ferrite, Structural property, Magnetic property
FundProject:
镉取代对纳米镍铁氧体结构和磁性的影响
Sanjay Pralhadrao Jadhav1, Bhagwan Ghanshamji Toksha2, Kamalakar Marutirao Jadhav*2, Narayan Dadarao Shinde3
1.Adarsh学院化学系,Omerg;2.Babasaheb Ambed-kar Marathwada博士大学物理系,奥兰加巴德431004;3.S.C.S学院化学系研究生部与研究中心,Omerga 413606
摘要:
采用湿化学共沉淀法合成了Ni1-xCdxFe2O4 (0≤x≤0.5)的混合铁氧体,利用X射线衍射对其结构和晶相进行表征.结果表明:随着镉Cd浓度的增加晶格参数逐渐增大.扫描电子显微镜研究微观结构,TG/DTA研究了硫酸共沉淀物.揭示了在650 oC合成铁氧体同时进行分解.测量了纳米粒子的磁化强度和交流磁化率.结果表明,Ni1-xCdxFe2O4混合铁氧体的磁化率、居里温度和有效磁矩随着镉含量的增加下降。
关键词:  铁氧体,结构特征,磁性
DOI:10.1088/1674-0068/23/04/459-464
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