Crystal structure refinement and electrical properties of Ni1-x-yCuxZnyFe2O4 spinel ferrites

Abstract

Ni1-x-yCuxZnyFe2O4 spinel ferrites have been prepared through solid-state reaction method. The XRD diffraction pattern and Rietveld refinement analysis of the samples revealed the formation of single crystalline phase of the spinel ferrite having Fd3m space group. The lattice constant (a), X-ray density (ρx), volume of unit cell (V) of the developed ferrite samples have been determined with the help XRD data. The electrical conductivity (σdc) was measured as a function of temperature. The behavior of the dc conductivity was explained on the basis of hopping mechanism of charge carriers. The value of dc conductivity was found to be increases as the temperature increases. It also increases with increase in the concentration of Zn and Ni. The value of activation energy was calculated from the Arrhenius curve of σdc.Ni1-x-yCuxZnyFe2O4 spinel ferrites have been prepared through solid-state reaction method. The XRD diffraction pattern and Rietveld refinement analysis of the samples revealed the formation of single crystalline phase of the spinel ferrite having Fd3m space group. The lattice constant (a), X-ray density (ρx), volume of unit cell (V) of the developed ferrite samples have been determined with the help XRD data. The electrical conductivity (σdc) was measured as a function of temperature. The behavior of the dc conductivity was explained on the basis of hopping mechanism of charge carriers. The value of dc conductivity was found to be increases as the temperature increases. It also increases with increase in the concentration of Zn and Ni. The value of activation energy was calculated from the Arrhenius curve of σdc.