Synthesis and magnetic properties of manganese–zinc ferrite nanoparticles obtained via a hydrothermal method

Manganese–zinc (MnZn) ferrite nanoparticles were synthesized via a hydrothermal method, and their structural and magnetic properties were studied. It was found that a low Fe content and the hydrothermal temperature play crucial roles in the synthesis of single phase MnZn ferrites. The hydrothermal temperature also affects the topography and the magnetic properties markedly. The best soft magnetic properties of M s  = 45.5 emu/g and H c  = 0.68 kA/m were obtained for the specimen with a Fe deficiency of 7% in the starting materials and hydrothermally synthesized at 180 °C.