中国物理B ›› 2017, Vol. 26 ›› Issue (7): 77501-077501.doi: 10.1088/1674-1056/26/7/077501

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Magnetic properties of Sn-substituted Ni–Zn ferrites synthesized from nano-sized powders of NiO, ZnO, Fe2O3, and SnO2

M A Ali, M M Uddin, M N I Khan, F U Z Chowdhury, S M Hoque, S I Liba   

  1. 1 Department of Physics, Chittagong University of Engineering and Technology(CUET), Chittagong 4349, Bangladesh;
    2 Materials Science Division, Atomic Energy Center, Dhaka 1000, Bangladesh
  • 收稿日期:2017-02-14 修回日期:2017-03-12 出版日期:2017-07-05 发布日期:2017-07-05
  • 通讯作者: M M Uddin E-mail:mohi@cuet.ac.bd

Magnetic properties of Sn-substituted Ni–Zn ferrites synthesized from nano-sized powders of NiO, ZnO, Fe2O3, and SnO2

M A Ali1, M M Uddin1, M N I Khan2, F U Z Chowdhury1, S M Hoque2, S I Liba2   

  1. 1 Department of Physics, Chittagong University of Engineering and Technology(CUET), Chittagong 4349, Bangladesh;
    2 Materials Science Division, Atomic Energy Center, Dhaka 1000, Bangladesh
  • Received:2017-02-14 Revised:2017-03-12 Online:2017-07-05 Published:2017-07-05
  • Contact: M M Uddin E-mail:mohi@cuet.ac.bd

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摘要： A series of Ni0.6-x/2Zn0.4-x/2SnxFe2O4 (x=0.0, 0.05, 0.1, 0.15, 0.2, and 0.3) (NZSFO) ferrite composities have been synthesized from nano powders using a standard solid state reaction technique. The spinel cubic structure of the investigated samples has been confirmed by x-ray diffraction (XRD). The magnetic properties such as saturation magnetization (Ms), remanent magnetization (Mr), coercive field (Hc), and Bohr magneton (μ) are calculated from the hysteresis loops. The value of Ms is found to decrease with increasing Sn content in the samples. This change is successfully explained by the variation of A–B interaction strength due to Sn substitution in different sites. The compositional stability and quality of the prepared ferrite composites have also been endorsed by the fairly constant initial permeability (μ') over a wide range of frequency. The decreasing trend of μ' with increasing Sn content has been observed. Curie temperature TC has been found to increase with the increase in Sn content. A wide spread frequency utility zone indicates that the NZSFO can be considered as a good candidate for use in broadband pulse transformers and wide band read-write heads for video recording. The composition of x=0.05 shows unusual results and the possible reason is also mentioned with the established formalism.

关键词: magnetic properties, saturation magnetization, permeability, Curie temperature

Abstract: A series of Ni0.6-x/2Zn0.4-x/2SnxFe2O4 (x=0.0, 0.05, 0.1, 0.15, 0.2, and 0.3) (NZSFO) ferrite composities have been synthesized from nano powders using a standard solid state reaction technique. The spinel cubic structure of the investigated samples has been confirmed by x-ray diffraction (XRD). The magnetic properties such as saturation magnetization (Ms), remanent magnetization (Mr), coercive field (Hc), and Bohr magneton (μ) are calculated from the hysteresis loops. The value of Ms is found to decrease with increasing Sn content in the samples. This change is successfully explained by the variation of A–B interaction strength due to Sn substitution in different sites. The compositional stability and quality of the prepared ferrite composites have also been endorsed by the fairly constant initial permeability (μ') over a wide range of frequency. The decreasing trend of μ' with increasing Sn content has been observed. Curie temperature TC has been found to increase with the increase in Sn content. A wide spread frequency utility zone indicates that the NZSFO can be considered as a good candidate for use in broadband pulse transformers and wide band read-write heads for video recording. The composition of x=0.05 shows unusual results and the possible reason is also mentioned with the established formalism.

Key words: magnetic properties, saturation magnetization, permeability, Curie temperature

中图分类号:  (Fe and its alloys)

  • 75.50.Bb
75.50.Gg (Ferrimagnetics) 75.60.Ej (Magnetization curves, hysteresis, Barkhausen and related effects) 75.50.Ss (Magnetic recording materials)