Abstract
In this study, we develop a novel urchin-like Co nanomatrix precursor that allows for precise control of the Sm/Pr ratio in the composite material, resulting in the successful synthesis of SmxPr1–xCo5 particles with tunable magnetic properties and strong anisotropy. Our analysis, including transmission electron microscopy and elemental mapping, confirmed the creation of single-crystal SmxPr1–xCo5 particles with controllable composition and desired properties. Notably, the Sm0.5Pr0.5Co5 particles demonstrated significant magnetocrystalline anisotropy and exceptional magnetic properties, including a high (BH)max of 16.1 MGOe and a high Hcj of 13.4 kOe. This innovative method may advance facile access to the chemical synthesis of multicomponent rare earth magnetic particles with adjustable properties to meet different application requirements.
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