Journal or Book Title
Journal of Applied Physics
We have investigated the magnetic and magnetoelasticproperties of a series of Cr-substituted cobaltferriteCoCrxFe2−xO4 (x=0.0–0.79) samples. Substitution of Cr for some of the Fe in cobaltferrite reduced the Curie temperature, and the effect is more pronounced than that observed in Mn-substituted cobaltferrite 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 cobaltferrites has been analyzed using the Néel molecular field model and compared with recent Mössbauer spectroscopy results.
Copyright 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
American Institute of Physics
Lee, S. J.; Lo, Chester C.H.; Matlage, P. N.; Song, S. H.; Melikhov, Y.; Snyder, J. E.; and Jiles, David C., "Magnetic and magnetoelastic properties of Cr-substituted cobalt ferrite" (2007). Center for Nondestructive Evaluation Publications. 20.