BULK MAGNETIC PROPERTIES OF NANOSIZED SPINEL FERRITES

Hina Bhargava, K.T. Vasudevan, N. Lakshmi, K. Venugopalan

Abstract: Nanosized Co0.5Zn0.5Fe2O4 and Cu0.5Zn0.5Fe2O4 were prepared using Co-precipitation method. Using a combination of x ray diffraction, Mössbauer studies and DC magnetization, the magnetic properties of nano sized Co0.5Zn0.5Fe2O4 and Cu0.5Zn0.5Fe2O4 have been studied. Although the preparation conditions were kept same, the particle size of Cu0.5Zn0.5Fe2O4 (2.4nm) were smaller than that of Co0.5Zn0.5Fe2O4 (5.8nm) as the formation of Cu0.5Zn0.5Fe2O4 is more exothermic in nature that the formation of Co0.5Zn0.5Fe2O4. The dependence of DC magnetization on particle size and cation distribution have been studied.

Keywords: Spinel ferrites, Co-precipitation, magnetic properties, Mössbauer spectroscopy

DOI: https://doi.org/10.15623/ijret.2016.0516088