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Magnetic and magnetoelastic properties of Cr-substituted cobalt ferrite

Lee, S. J., Lo, C. C. H., Matlage, P. N., Song, S. N., Melikhov, Yevgen, Snyder, John Evan and Jiles, David 2007. Magnetic and magnetoelastic properties of Cr-substituted cobalt ferrite. Journal of Applied Physics 102 (7) , 073910. 10.1063/1.2794711

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Abstract

We have investigated the magnetic and magnetoelastic properties of a series of Cr-substituted cobalt ferrite CoCrxFe2−xO4 (x = 0.0–0.79) samples. Substitution of Cr for some of the Fe in cobalt ferrite reduced the Curie temperature, and the effect is more pronounced than that observed in Mn-substituted cobalt ferrite samples. Cr substitution also caused the maximum magnetostriction to decrease at a greater rate than substitution of the same amount of Mn. The maximum of the strain derivative, dλ/dH, was reached for x = 0.38. The behavior of the Curie temperature of Cr-substituted and Mn-substituted cobalt ferrites has been analyzed using the Néel molecular field model and compared with recent Mössbauer spectroscopy results.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: Q Science > QC Physics
Publisher: American Institute of Physics
ISSN: 0021-8979
Last Modified: 02 Jun 2019 23:06
URI: http://orca-mwe.cf.ac.uk/id/eprint/7910

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