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Title: Spin configuration and magnetostrictive properties of Laves compounds TbₓDy₀.₇₋ ₓPr₀.₃(Fe₀.₉B₀.₁)₁.₉₃ (0.10≤x ≤ 0.28)
Authors: Liu, JJ
Ren, WJ
Zhang, ZD
Li, D
Li, J
Zhao, XG
Liu, W
Or, DSW 
Issue Date: 15-Jul-2006
Source: Journal of applied physics, 15 July 2006, v. 100, no. 2, 023904, p. 1-4
Abstract: The spin configuration and magnetostrictive properties of TbₓDy₀.₇₋ ₓPr₀.₃(Fe₀.₉B₀.₁)₁.₉₃ (0.10≤x ≤ 0.28) Laves compounds are investigated. The spin phase diagram for the compounds is constructed to illustrate both the composition dependence of the Curie point T[sub c] and spin reorientation temperature T[sub SR] and the arrangement for the easy magnetization direction (EMD) . It is found that when x is increased from 0.16 to 0.28, T[sub c] increases from 617 to 623 K, while T[sub SR] decreases from 375 to 160 K at which the EMD reorients from <100> to <111> axis. The magnetization and magnetostriction of the compounds are measured as a function of applied field. The magnetocrystalline anisotropy constant K₁ and the ratio λα/K₁ reach a minimum and a maximum value at x=0.22, respectively. The single phase Tb₀.₂₂Dy₀.₄₈Pr₀.₃(Fe₀.₉B₀.₁) ₁.₉₃ compound has the lowest magnetocrystalline anisotropy, the highest magnetostriction to anisotropy ratio, and a large spontaneous magnetostriction λ₁₁₁of ~ 1500 ppm at room temperature. In view of these properties, the compound is a promising magnetostrictive material.
Keywords: Terbium alloys
Dysprosium alloys
Praseodymium alloys
Iron alloys
Boron alloys
Curie temperature
Spin dynamics
Magnetic anisotropy
Publisher: American Institute of Physics
Journal: Journal of applied physics 
ISSN: 0021-8979
EISSN: 1089-7550
DOI: 10.1063/1.2219344
Rights: © 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. J. Liu et al., J. Appl. Phys. 100, 023904 (2006) and may be found at
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