I prepared samples with different proportions of Gd in NdFeB alloys in which I replaced Gd with Nd. The coercivity increases as the amount of Gd doped increases. Why is that so?
Phase formation, grain growth and magnetic properties of NiCuZn ferrites - ScienceDirect https://www.sciencedirect.com/science/article/pii/S0304885310008553?via%3Dihub
Grain growth process of two-phase nanocrystalline soft magnetic materials - ScienceDirect https://www.sciencedirect.com/science/article/pii/S0304885306005208?via%3Dihub
Magnetically Affected Recrystallization and Grain Growth in Non-Ferromagnetic Metals | Scientific.Net https://www.scientific.net/MSF.558-559.649