Abstract
Experimental evidence for the anisotropy compensation between Dy3+ and Pr3+ ions has been observed directly by performing x-ray diffraction on magnetic-field aligned powders and by evaluating the spin-reorientation temperature and the magnetostriction of Tb0.2Dy0.8−xPrx(Fe0.9B0.1)1.93 alloys. The spin-reorientation temperature decreases with increasing the Pr content. The easy magnetization direction (EMD) at room temperature of the alloys rotates continuously in the (11¯0) plane from ⟨001⟩ for x=0.18 to ⟨111⟩ for x=0.40, subjected to the anisotropy compensation between Dy3+ and Pr3+ ions. It is observed that the EMD of some of the alloys lies along nonmajor axes at room temperature. A maximum value of magnetostriction is achieved at x=0.22, which is also attributed to the anisotropy compensation.
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