Fig. 2From: The Magnetic Susceptibility Bifurcation in the Ni-Doped Sb2Te3 Topological Insulator with Antiferromagnetic Order Accompanied by Weak Ferromagnetic AlignmentThe susceptibility as a function of magnetic fields from 2 to 200 K. It reveals the diamagnetism at high magnetic fields. Top-right inset: The hysteresis loop was observed at temperature below 125 K. Bottom-left inset: No hysteresis loop was observed at temperature above 125 KBack to article page