Fig. 4: Magnetic hysteresis loop.
From: Magnetic domains and domain wall pinning in atomically thin CrBr3 revealed by nanoscale imaging
a Magnetic domains at 2 mT external magnetic field along the NV axis after being thermally demagnetized and cooled down under zero field. The dashed box denotes the area #1 used to analyze the hysteresis loop. b–i Representative magnetization images of area #1 on the hysteresis loop with the corresponding labels in j, and the dashed lines denote the area #2. The scale bar in b is 1 μm for all the images. j Hysteresis loop extracted from the magnetization images of areas #1 and #2, which are denoted by the black stars and red dots, respectively. The solid curve connects measured values, while the dashed curve is an extension to demagnetized and saturated states.
