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

(a) Enlarged XRD patterns of 2θ between 34.3° and 36° for samples of x = 0.2 and x = 0.3. (b) M–T curves for the samples (x = 0.2 and x = 0.3) in the temperature range of 200–300 K. Their corresponding d M / d T –T curves are shown in the top-right insets.[23]