Abstract
The spin orientation and spontaneous magnetostriction of multicomponent Tb/sub x/Dy/sub 1-x-y/Pr/sub y/(Fe/sub 0.9/B/sub 0.1/)/sub 1.93/ (0.10 /spl les/ x /spl les/ 0.25, 0.30 /spl les/ y /spl les/ 0.60) Laves phases were studied by step-scanning their (440) X-ray diffraction lines. The easy magnetization direction (EMD) of the Laves phases changed from the <100> to <111> axis when x was increased from 0.10 to 0.25. With increasing y, the EMD of Tb/sub 0.15/Dy/sub 0.85-y/Pr/sub y/(Fe/sub 0.9/B/sub 0.1/)/sub 1.93/ and Tb/sub 0.2/Dy/sub 0.8-y/Pr/sub y/(Fe/sub 0.9/B/sub 0.1/)/sub 1.93/ Laves phases reoriented from the <100> to <111> axis. The magnetostriction coefficient /spl lambda//sub 111/ of Tb/sub x/Dy/sub 1-x-y/Pr/sub y/(Fe/sub 0.9/B/sub 0.1/)/sub 1.93/ Laves phases increased with increasing x (or y) when y (or x) was kept constant.
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