Abstract

• Samarium substituted Zinc ferrites, ZnFe2-2xSm2xO4 (x= 0.0000, 0.0125, 0.0250, 0.0375, 0.0500) have been synthesized by Conventional Ceramic Method. The structural properties have been investigated by the X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR) and dielectric measurements. The XRD analysis has confirmed the single cubic spinel phase of ZnFe2-2xSm2xO4with various compositions. The surface morphology has been observed from SEM micrographs. The average grain size has become smaller due to the substitution of Sm ion with larger ionic radius compared to that of Fe ion. FTIR analysis indicates the specific molecular vibrations at the spinel lattice in the wavelength range of 400 - 4000cm-1 . The dielectric constant was measured in the frequency range of 1kHz to 1MHz.