Interacting or non-interacting nanoparticles of (Mn1−xZnx)0.5 Co0.5Fe2O4(x = 0 –1) ferrite synthesized by reverse micelle

Abstract

(Mn1−xZnx)0.5 Co0.5Fe2O4(x = 0 –1) ferrite nanoparticles were prepared using reverse micelle process. X- ray diffraction patterns demonstrated that single phase spinel ferrites are obtained. Vibrating sample magnetometer (VSM) was employed to probe magnetic properties of samples. The compositional dependence of blocking temperature was measured using superconducting Quantum Interference Device (SQUID). Magnetic dynamics of the samples was studied by the measurement of AC magnetic susceptibility versus temperature at different frequencies. 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.