Abstract
A series of Zn-substituted Cu1-xZnxFe2O4 (where x = 0.0–1.0 with step of 0.1) ferrites were synthesized by double sintering solid state reaction method to explore disorder magnetic behavior. The room temperature (300 K) and low temperature (5 K) magnetic behavior has been analyzed using M-H curve, B–H loop, μi-T curve and M-T curve. The saturation magnetization for sample x = 0.0 to 0.6 and non-saturation magnetization for sample x = 0.7 to 1.0 designate the existence of long-range and short-range ferromagnetic order respectively. The Curie temperature has been derived from the sharp fall of permeability for sample x = 0.0–0.6 which is declining with raising Zn content due to redistribution of cations and weakening of A-B exchange interaction. The shrinking of coercivity affirms softer nature which can be used as high frequency soft magnetic materials. For M-T curve, when temperature is lowered from 300 K to 5 K, different disorder magnetic transition such as paramagnetic-ferromagnetic-reentrant spin glass-spin glass has been remarked for sample x > 0.6. All these feature of magnetic behavior of Cu–Zn ferrites has been studied in details in this paper.
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