TITLE

Magnetostriction and anisotropy compensation in Tb[sub x]Dy[sub 1-x]Pr[sub 0.3](Fe[sub 0.9]B[sub 0.1])[sub 1.93] alloys

AUTHOR(S)
Ren, W. J.; Zhang, Z. D.; Zhao, X. G.; Liu, W.; Geng, D. Y.
PUB. DATE
January 2004
SOURCE
Applied Physics Letters;1/26/2004, Vol. 84 Issue 4, p562
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Structure and magnetostriction of Dy[sub 0.7-x]Tb[sub x]Pr[sub 0.3](Fe[sub 0.9]B[sub 0.1])[sub 1.93] (0≤x≤0.70) alloys have been studied. The easy magnetization direction of the Laves phase in the Dy[sub 0.7-x]Tb[sub x]Pr[sub 0.3](Fe[sub 0.9]B[sub 0.1])[sub 1.93] alloys with 0≤x<0.20 lies along <100> axis, while that of the Laves phase in those alloys with 0.25≤x≤0.70 lies along <111> axis, as determined by means of x-ray crystallography study. When x is increased from 0.15 to 0.25, the change of the easy magnetization direction from <100> to <111> axis is detected also by Mössbauer spectra, in good agreement with the results of x-ray crystallography. The Laves phase Tb[sub 0.25]Dy[sub 0.45]Pr[sub 0.3](Fe[sub 0.9]B[sub 0.1])[sub 1.93] has a large spontaneous magnetostriction (λ[sub 111]≈1850 ppm) and a low anisotropy at room temperature, which could make it a good candidate material for magnetostriction applications. © 2004 American Institute of Physics.
ACCESSION #
12020883

 

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