The structural and magnetostrictive properties of (CexTb1−x)0.5Pr0.5Fe2 were investigated. The Ce concentration must exceed x=0.6 in order to obtain the pure Laves phase. The magnetostriction and anisotropy constant increase with the Tb content in this system. The anisotropy value of PrFe2 is lower than that of isostructural DyFe2. From the x-ray step-scanned data, we find that λ111 of PrFe2 is 1310 ppm. A large increase can be observed under a small prestress of 6 MPa for Ce0.5Pr0.5Fe2.
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Tang et al. (1998) studied this question.
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