Figure 2. Magnetometry results for sample C (Gd_0.53Fe_0.47/NiCoO).

(a) Room-temperature hysteresis loops under different cooling fields of 15 mT (red) and 1.5 T (blue). (b,c) Zoomed-in views of phase 1 and phase 2, respectively, as indicated by arrows. Temperature-dependent (d) hysteresis loop (300–420 K, marked by the scale bar, with a zoomed-in view shown in e), (f) coercivity and exchange bias, and (g) saturation magnetization and squareness are shown after field cooling in 15 mT. Error bars are determined by the machine sensitivity limits. For clarity, not all data points are shown.