Relevance of $4f$-$3d$ exchange to finite-temperature magnetism of rare-earth permanent magnets: an ab-initio-based spin model approach for NdFe${}_{12}$N

Munehisa Matsumoto, Hisazumi Akai, Yosuke Harashima +2

A classical spin model derived ab initio for rare-earth-based permanent magnet compounds is presented. Our target compound, NdFe${}_{12}$N, is a material that goes beyond today's cha…