Magnetic and magnetoelastic properties of Cr-substituted cobalt ferrite

Lee, S. J., Lo, C. C. H., Matlage, P. N., Song, S. N., Melikhov, Yevgen ORCID: https://orcid.org/0000-0002-9787-5238, 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:	07 Jul 2023 05:58
URI:	https://orca.cardiff.ac.uk/id/eprint/7910

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