Figure 5
From: Physical Justification for Negative Remanent Magnetization in Homogeneous Nanoparticles

Major hysteresis loop measured at 10 K.
Insets: (Left) Detail of a high field region (36500 to 37000 Oe) that displays normal hysteresis. (Right) Detail of a low field region (−500 to 500 Oe) that displays inverted hysteresis.