Synthesis and investigation on structural and magnetic properties of Cu doped Ni Zn ferrite nanopowders prepared via sol-gel method

Abstract

In this study, a series of copper substituted in nickel–zinc ferrite nanoparticles with composition of Ni0.3Zn0.7-xCuxFe2O4 (where x = 0.1 - 0.6 by step 0.1) were synthesized by sol-gel method. The effect of Cu substitution on phase formation and crystal structure of sample were investigated by X-Ray diffraction (XRD), Thermogravimetry (TG), Differential thermal analysis (DTA), Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM). Moreover the room saturation magnetization of samples was studied by Vibration sample magnetometer (VSM). Hysteresis loops measurements exhibited an increase in the saturation magnetization value (Ms) up to sample with x = 0.3 followed by a linearly decrease. The increases in the coercivety (Hc) with increase in copper content is attributed to the bigger magneto crystalline anisotropy of  Cu2+ ions compared with Zn2+ ions.

Keywords

References

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Iranian Journal of Crystallography and Mineralogy
Volume 21, Issue 3 - Serial Number 51
October 2013
Pages 511-518

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History

  • Receive Date: 02 July 2025
  • Revise Date: 04 February 2026
  • Accept Date: 02 July 2025

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