Abstract
Mn 1− x Cu x Fe 2O 4 ( x = 0–0.4) ferrite nanoparticles were prepared by reverse micelle process. X-ray diffraction (XRD), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM) were employed to probe structural and magnetic properties of samples. The temperature dependence of blocking temperature was measured using Superconducting Quantum Interference Device (SQUID) and AC magnetic susceptibility. The phenomenological Néel–Brown and Vogel–Fulcher models were employed to distinguish between the interacting or non-interacting system. Results exhibited that there is strong interaction between fine particles.
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