Structural and magnetic behaviour of temperature influenced Mn0.5Zn0.25Cu0.25Fe2O4 spinel nanoparticles by co-precipitation route

A low-temperature co-precipitation approach was used to prepare Mn0.5Zn0.25Cu0.25Fe2O4 nanoparticles (NPs) followed by calcination at 400 degrees C, 600 degrees C, 800 degrees C and 1000 degrees C for 5 h. The X-ray diffraction analysis confirms the spinel ferrite formation. Transmission electron microscopy (TEM) analysis demonstrates nearly cubical morphology of the produced NPs. The smooth M-H loop with small coercive field (4.34, 10.70, 27.68, 21.88 Oe), magnetic saturation (1.86, 34.41, 43.68, 39.39 emu/g), and retentivity (0.004, 0.488, 1.358, 0.845 emu/g) of NPs recorded by VSM. The produced superparamagnetic NPs may be advantageous in biomedical applications in addition to high frequency applications.