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Magnetic studies of Mn2+substituted Zn-ferrite nanoparticles: Role of secondary phases, bond angles and magnetocrystalline anisotropy by M. Deepty; G. Prasad; Ch Srinivas; S.A.V. Prasad; E. Ranjith Kumar; N. Krishna Mohan; Sher Singh Meena; Pramod Bhatt; D.L. Sastry is a Physics and Astronomy article available to read on EtoBox.
What is Magnetic studies of Mn2+substituted Zn-ferrite nanoparticles: Role of secondary phases, bond angles and magnetocrystalline anisotropy about?
Magnetic studies of Mn x Zn1–x Fe2O4 (x = 0.5, 0.6, 0.7) nanoferrite particles prepared by sol-gel auto combustion method are presented. The deviation of the oxygen positional parameter (U) from the ideal value of 0.375 is an indicator for the cation redistribution in the present ferrite systems. The variation of bond angles estimated from the cation distribution seemed to be strengthening of A–B superexhange interaction. The nature of M − H loops revealed that the present ferrite nanoparticles are in the single domain state showing superparamagnetism. The saturation magnetization (M s ) increases while coercivity (H c ) decreases with the substitution of Mn2+ ion concentration. The highest value of M s = 25 emu/g was reported for the composition x = 0.7. It was observed that the blocking temperature (T B ) is decreasing and again increasing with the doping level of Mn2+. From FC-ZFC curves, the uneven variation of magnetization (M) at 10 K can be found. It attributes to the cation distribution in the ferrite samples at 10 K is different from those of at 300 K. The Mӧssbauer spectra revealed that the ferrite nanoparticles exhibited both quadruple and hyperfine interactions can be f
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- Author
- M. Deepty; G. Prasad; Ch Srinivas; S.A.V. Prasad; E. Ranjith Kumar; N. Krishna Mohan; Sher Singh Meena; Pramod Bhatt; D.L. Sastry
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)