• Arshiya Tabassum

Nanocrystalline Co₀.₅Zn₀.₄₅Pr₀.₀₅Fe₂O₄ ferrite was successfully synthesized via a modified auto-combustion method using citric acid as a fuel. The structural, magnetic, and optical properties of the prepared sample were systematically investigated at room temperature. X-ray diffraction analysis confirms the formation of a single-phase cubic spinel structure with space group Fd-3m, showing no evidence of secondary phases and exhibiting good agreement with JCPDS card No. 22-1086. The average crystallite size was estimated to be 5.83 nm, and the lattice parameters were determined as a = b = c = 8.41168 Å. Magnetic measurements reveal a soft ferromagnetic behavior at room temperature, with a saturation magnetization of 50.54 emu/g. Optical properties studied using UV–visible diffuse reflectance spectroscopy indicate a direct optical band gap of 3.49 eV. The results demonstrate that Pr³⁺-substituted Co–Zn ferrite synthesized via the auto-combustion route exhibits promising structural stability along with tunable magnetic and optical properties, making it a potential candidate for multifunctional applications.

Co–Zn ferrite; Praseodymium substitution; Auto-combustion method; Structural properties; Magnetic properties.

"Synthesis and Study of Structural, Magnetic and Optical Parameter of Co0.5Zn0.45Pr0.05Fe2O4", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.13, Issue 1, page no.f248-f252, January-2026, Available :http://www.jetir.org/papers/JETIR2601537.pdf

"Synthesis and Study of Structural, Magnetic and Optical Parameter of Co0.5Zn0.45Pr0.05Fe2O4", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.13, Issue 1, page no. ppf248-f252, January-2026, Available at : http://www.jetir.org/papers/JETIR2601537.pdf