Grain boundary restructuring and La/Ce/Y application in Nd–Fe–B magnets
Yan Mi †, Jin Jiaying, Ma Tianyu
       

Demagnetization curves of sintered permanent magnets with 50 at.% La–Ce substitution, compared to those with La or Ce incorporation alone. The inset shows the detailed magnetic properties including Br, Hcj, and (BH)max.[23]