Fig. 3.

Magnetism of GdSi₂ materials. a Temperature dependence of the AFM magnetic moment in bulk GdSi₂ (≅160 ML) measured in a magnetic field 1 kOe along directions Si[111] (blue) and Si$\left[11\overline{2}\right]$ (red). b Temperature dependence of the magnetic moment in 17 ML GdSi₂ measured in a magnetic field 1 kOe along directions Si[111] (blue) and Si$\left[11\overline{2}\right]$ (red). c Temperature dependence of the FM moment in the 4-5 ML sample of GdSi₂ in magnetic fields 2-3 Oe (black), 10 Oe (red), 30 Oe (turquoise), 100 Oe (purple), 200 Oe (green), 600 Oe (orange), and 1 kOe (blue). d Temperature dependence of the normalized FM moment in the 2 ML sample of GdSi₂ in magnetic fields 10 Oe (red), 100 Oe (green), and 1 kOe (blue). e Magnetic field dependence of the FM moment in the 2 ML sample of GdSi₂ at 2 K. f Temperature dependence of the remnant moment (after cooling at 500 Oe) in GdSi₂ samples of different thickness: 1 ML (black), 2 ML (red), 4-5 ML (blue), and ≅9 ML (green). g Dependence of the saturation moment at 2 K on the number of GdSi₂ MLs. Error bars are s.d