Abstract
A systematical investigation was carried out on structure and magnetic properties in SmFe9−xVx (x = 0.4, 0.8, 1.2) compounds prepared by a single-roller quenching method. The high cool-down rate leads to metastable TbCu7 phase in the parent compound, which gradually transforms into equilibrium ThMn12 structure with V-doping content increasing. The Curie temperature increases from 470 to 590 K with V doping, which is consistent with the phase transformation. Surprisingly, simultaneous increase in both coercivity and remanence is resulted by V doping, reaching the highest value of 685 kA·m−1 and 44.8 × 10−3 A·m2·g−1 in x = 1.2 compound, respectively. This phenomenon can be explained by the combination of phase transformation and intergranular exchange coupling through δM-H plots.
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This work was financially supported by the National High Technology Research and Development Program of China (No. 2011AA03A402).
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Mao, YJ., Jin, JL., Xie, JJ. et al. Structural transformation and magnetic properties of Sm–Fe alloys with V doping. Rare Met. 41, 2349–2352 (2022). https://doi.org/10.1007/s12598-015-0567-5
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DOI: https://doi.org/10.1007/s12598-015-0567-5