fig8
Figure 8. Potential diagrams around Fe atoms in (A) Invar (Fe65Ni35), (B) SUS316 (Fe67Cr18Ni12Mo2Mn1), and (C) Elinvar (Fe50Ni42Cr6Ti4) alloys. FM and NM denote the ferromagnetically coupled high-spin and nonmagnetic low-spin Fe, respectively[47].