Study of structural and ferromagnetic properties of pure and Cd doped copper ferrite

Radheshyam Rai (1) , Kavita Verma (2) , Seema Sharma (2) , Swapna S. Nair (3) , Manuel Almeida Valente (3) , Andrei L. Kholkin (1) , Nikolai A. Sobolev (3)

1 Department of Ceramics and Glass Engineering and CICECO
2 Department of Physics
3 Departamento de Fisica

This report presents the synthesis of copper cadmium ferrite (CuCdFeO x=0.3, 0.4, 0.5, 0.6 and 0.7) by citrate precursor method and its subsequent characterization by using X-ray diffraction (XRD), differential scanning calorimetry, infrared spectroscopy and ferromagnetic resonance. XRD results confirm the single cubic spinel phase formation with the particle size of 40nm, which decreased up to 20nm with increase in Cd content, while the lattice parameter increased with increase in Cd content. A significant change in the magnetic properties was observed in CuFeO system with Cd doping. The line width and resonance field variation against change in temperature is noted and the data is fitted to the Linearlized model (LM and Smit and Beljers (SB model to find out the parameters. The results recorded from the SB approach are in good agreement to that observed in the magnetic measurements carried out by vibrating sample magnetometer (VSM) techniques.

Mots clés: Ceramics; Magnetic materials; Chemical synthesis; X-ray diffraction; Magnetic properties

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Radheshyam Rai, Kavita Verma, Seema Sharma, Swapna S. Nair, Manuel Almeida Valente, et al.. Study of structural and ferromagnetic properties of pure and Cd doped copper ferrite. Journal of Physics and Chemistry of Solids, 2011, 72 (7), pp.862. ⟨10.1016/j.jpcs.2011.04.002⟩. ⟨hal-00757445⟩