Extended Data Figure 6: Temperature evolution of the remanent magnetization of a six-layer Cr2Ge2Te6 flake.
From: Discovery of intrinsic ferromagnetism in two-dimensional van der Waals crystals
At 4.7 K, after ‘saturating’ the six-layer Cr2Ge2Te6 flake by a 0.6-T magnetic field, the remanent magnetization is obtained by removing the field. Subsequently, under zero-field, the temperature is increased, during which process the Kerr rotation angle is tracked. This measurement shows an intrinsic ferromagnetic phase transition temperature of a six-layer Cr2Ge2Te6 flake close to 10 K. Error bars, standard error of sample signals.
