Direct experimental evidence for anisotropy compensation between Dy3+ and Pr3+ ions
Direct experimental evidence for anisotropy compensation between Dy3+ and Pr3+ ions
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DOI：
10.1063/1.2356109
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发表时间：
2006-09
影响因子：
4
通讯作者：
W. Ren;J. J. Liu-J.;D. Li;W. Liu;Xuyao Zhao;Z. Zhang
中科院分区：
文献类型：
--
作者：
W. Ren;J. J. Liu-J.;D. Li;W. Liu;Xuyao Zhao;Z. Zhang
通过对磁场取向的粉末进行X射线衍射，并通过测量Tb0.2Dy0.8-xPrx（Fe0.9B0.1）（1.93）合金的自旋重取向温度和磁致伸缩系数，直接观察到Dy ~（3+）和Pr ~（3+）离子间各向异性补偿的实验证据。自旋重取向温度随Pr含量的增加而降低。合金室温下的易磁化方向（EMD）在x=0.18到x=0.40的（1（1）over bar 0）平面内连续旋转，受到Dy 3+和Pr 3+离子之间的各向异性补偿。观察到某些合金的EMD在室温下沿着非长轴分布。磁致伸缩在x=0.22处达到最大值，这也归因于各向异性补偿。(c)2006年，美国物理学会。
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 (1 (1) over bar0) plane from for x=0.18 to 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. (c) 2006 American Institute of Physics.