Paper Title
A Neutron Diffraction and Magnetic Properties of Co0.3Zn0.7Fe2O4 Spinel Ferrite

Abstract
The system under investigation is a bulk Co0.3Zn0.7Fe2O4 ferrite synthesized through the wet chemical process and exhibiting magnetic inhomogeneity on a microscopic scale due to a concentration of magnetic ion below the site percolation threshold for ferromagnetic ordering. Low temperature neutron diffraction, magnetization, and a susceptibility measurements were used to determine the magnetic ground state of this system.At all temperatures, a diffused scattering signal appears below the (1 1 1) magnetic Bragg peak in the temperature-dependent neutron diffraction analysis, showing the presence of a finite magnetic cluster with infinite magnetic network. At T=10 K, the strength of the dispersed scattering signal diminishes as the magnetic field increases.In the χ/&χ//range, the susceptibility measurement shows three peaks, confirming the presence of finite magnetic clusters and cluster–cluster interaction. The phase transition from uniaxial random ferromagnetic (URF) phase to semi spin glass or canted random ferromagnetic (CRF) phase in the system with temperature is indicated by the absence of magnetic (2 0 0) peak in neutron diffraction at 2 K and bifurcation of zero field and field cooled magnetization.