Composition assisted tuning properties of CoCrxFe2-xO4 spinel nano ferrites. (2020)

• Record Type: Journal Article
• Authors: Tiwari, P.; Kane, S.N.; Mazaleyrat, F.; Deshpande, U.P.
• Is Part Of: Materials today. Volume 32:Part 3(2020)
• Page Start: 350
• Page End: 353
• Publication Date: 2020
• Subjects: Sol gel auto-combustion method -- Co-Cr ferrites XRD -- Bandgap -- VSM -- Magnetic properties; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.01.603
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Structural, magnetic properties, bandgap of sol gel auto-combustion synthesized single phase CoCrx Fe2-x O4 (x = 0.0–1.0) nano ferrites, were studied by x-ray diffraction, vibration sample magnetometer, ultra violet visible spectroscopy. Linear decrease of lattice parameter with increasing Cr-content is ascribed to difference between ionic radii of Cr 3+ (0.064 nm), Fe 3+ (0.067 nm). Linear decrease of grain diameter with increasing Cr-content, shows presence of Cr in spinel lattice which hinders grain growth. Results show bandgap tenability; reveal that Cr-addition is effective in determining coercivity, saturation magnetization of studied samples. Results illustrate effectiveness of compositional variation for structural modification, leads to tuning of magnetic properties, bandgap.