New magnetostrictive cobalt ferrite composites and their substituted modifications [1] show magnetoelastic properties that are promising for use in stress or torque sensors because of their high levels of magnetostriction and high slope of magnetostriction vs. applied field. In order to selectively tailor the magnetomechanical response of substituted cobalt ferrites for such strain sensing and actuating applications, more needs to be known about the variation of the basic magnetic and magnetoelastic properties with composition and temperature. Magnetic anisotropy is one of the important properties determining magnetomechanical response. In the present study we report the results of the effect of chromium substitution for iron on magnetocrystalline anisotropy and its temperature dependence for a series of sintered bulk Cr-substituted cobalt ferrites (CoCr{sub}xFe{sub}(2-x)O{sub}4 with 0≤x≤0.8) over the temperature range 400 to 10K.
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