Abstract
Spinel ferrites Li0.3Zn0.4MoxFe2.3–xO4 (x = 0.00, 0.01, 0.02, and 0.03) have been prepared by the sol–gel auto-combustion method. The crystal structure, surface morphology, and magnetic properties of the samples have been investigated by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and vibrating sample magnetometer (VSM). The analysis of XRD data confirms the formation of a cubic Fd-3m phase for the samples with x ≤ 0.02, while a small amount of impurity phases α-Fe2O3 and Li2MoO4 appears in the sample with x = 0.03. The lattice parameter increases at x ≤ 0.02, which indicates that the valence state of Mo ions is mainly trivalent. Both saturation magnetization (Ms) and initial permeability (μi) first decrease and then increase with increasing Mo content. The maximum initial permeability (μi) of 101 is observed at x = 0.03, which is associated with the appearance of the impurity phase α-Fe2O3 with high density. The Curie temperature increases first and then decreases with x increasing. The highest Curie temperature (Tc) of 360 °C is observed at x = 0.02, which may be suitable for higher-temperature soft magnetic materials.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.