Fine powders of Ni 0.6 − x Cu x Zn 0.4 Fe 2 O 4 , where 0 ≤ x ≤ 0.4 was prepared by the citrate precursor method. The powders were calcined at 600 • C for a duration of 1 h and sintered at 900 • C for 3 h. The effect of compositional variation on structural, dielectric and magnetic properties of the Cu substituted NiZn ferrite was investigated. X-ray diffraction measurements confirmed the formation of single-phase cubic spinel structure at such low temperature of calcinations and sintering. A maximum density …
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