“…The interfaces between FM NPs and the AFM matrix are free of contamination, which is critical for the FM/AFM exchange coupling investigation. Up to now, only a few groups have reported using this method to pre pare FM/AFM nanocomposites (Ni NPs in an IrMn matrix, Co NPs in a Cr matrix, Fe NPs in a Cr matrix, etc) [6,23,27].…”