Author(s)

Shahida Akhter, Deba Prasad Paul, Md. Abdul Hakim, Shireen Akhter, Sheikh Manjura Hoque, Hari Narayan Das

Department of Physics, University of Chittagong.
Materials Science Division, Atomic Energy Centre.

Cu-Zn ferrite with general formula of Cu_1-xZn_xFe₂ O₄ with a range from x = 0.0 to 0.7 (in steps of 0.1) was prepared by using standard ceramic techniques. The confirmation of sin-gle-phase formation was carried out by employing X-ray diffraction technique. Some of the magnetic properties were measured, such as Curie temperature, the complex permeability and low field hysteresis loop. It was found that Curie temperature T_c decreases from 464?C to 20?C. The real part of initial permeability, μ_′ in-crease with increasing Zn contents up to x = 0.5 after that it decreases with higher Zn content. Low field hysteresis measurement was carried out at room temperature and this measurement with the increase of Zn²⁺ ions yields the increase of saturation magnetic induction (B_y) and magnetic remanance (B_r) up to x = 0.4 thereafter it decreases. The decrease in corecivity (H_c) and hysteresis loss is observed for all samples. In view of this, the possible changes in magnetic properties with the increase in Zn concentration are un-dertaken.

XRD; Curie Temperature; Initial Permeability; Hysteresis Loop; Coercivity

S. Akhter, D. Paul, M. Hakim, S. Akhter, S. Hoque and H. Das, "Magnetic Properties of Cu_1-xZn_xFe₂ O₄Ferrites with the Variation of Zinc Concen-tration," Journal of Modern Physics, Vol. 3 No. 5, 2012, pp. 398-403. doi: 10.4236/jmp.2012.35055.