Synthesis and Investigation of Electrical and Magnetic Properties of Cobalt Substituted Lithium Nano Ferrites

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Synthesis and Investigation of Electrical and Magnetic Properties of Cobalt Substituted Lithium Nano Ferrites

G. Aravind, M. Raghasudha, D. Ravinder, P. Veerasomaiah

The chapter deals with the investigation of electrical and magnetic properties of Li0.5-0.5xCoxFe2.5-0.5xO4 (x = 0.0 to 1.0) synthesized by a citrate-gel auto combustion method. Cobalt substitution was reported to transform the soft pure lithium ferrite into magnetically hard cobalt substituted lithium ferrite. DC resistivity results show the semiconducting behavior. Dielectric constant and dielectric loss tangent of all prepared samples found to decrease with increasing the frequency. Magnetization results indicated that Li-Co ferrites (x = 0.8, x = 1.0) show superparamagnetic behavior and hence they can be useful in biomedical applications for targeted drug delivery and magnetic resonance imaging (MRI).

Keywords
Nano Ferrites, XRD, SEM, Electrical Properties, Magnetic Properties

Published online 4/20/2018, 29 pages

DOI: http://dx.doi.org/10.21741/9781945291692-5

Part of the book on Magnetic Oxides and Composites

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