Estimation of Cation Distribution in Zn_0.5Mg_0.5Pr_xFe_2-xO₄ Ferrites Using ⁵⁷Fe Mössbauer Spectroscopy

Sahi Ram^1, and Shailndra Singh¹

¹Mössbauer Laboratory, Department of Physics, Jai Narain Vyas University, Jodhpur, Rajasthan, India-342001

Cite this paper:
Sahi Ram and Shailndra Singh. Estimation of Cation Distribution in Zn_0.5Mg_0.5Pr_xFe_2-xO₄ Ferrites Using ⁵⁷Fe Mössbauer Spectroscopy. International Journal of Physics. 2023; 11(2):88-96. doi: 10.12691/ijp-11-2-5

Abstract

A series of praseodymium-doped Zn_0.5Mg_0.5Pr_xFe_2-xO₄ (x= 0.0, 0.02, 0.06 and 0.10) ferrites were synthesized by solid-state reaction method to study the impact of doping Pr³⁺ ions on the structural and magnetic properties of Zn_0.5Mg_0.5Pr_xFe_2-xO₄ ferrite compositions. The powdered x-ray diffraction studies revealed the presence of peaks corresponding to tetrahedral and octahedral positions, confirming cubic spinel structure in all samples. Vibratory sample magnetometer study revealed changes in microscopic magnetic properties. The net magnetization increased while the coercivity decreased with increase in concentration of Pr³⁺ substitution. ⁵⁷Fe Mössbauer studies were used to obtain the chemical state of iron and its occupancy to tetrahedral/octahedral site and to estimate the cation distribution of tetrahedral site and octahedral site in all synthesized ferrite compositions. Using the cation distribution of tetrahedral site and octahedral site, an attempt is made to understand the magnetic properties of Pr doped Zn-Mg ferrites.

Keywords:
Spinel Ferrite Chemical state of iron Cation Distribution magnetic properties ⁵⁷Fe Mössbauer Spectroscopy

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