Fig. 3: Magnetization vs. temperature of Fe5GeTe2.
From: Skyrmionic spin structures in layered Fe5GeTe2 up to room temperature
The external field B is applied along the c-axis and in the ab-plane with a field strength of 0.1 T, while the temperature T is varied and the magnetization M is measured. Zero field cooled (ZFC) indicates that the sample was cooled without application of an external field and then the field of 0.1 T was applied at the lowest temperature followed by measurements performed during warming. Field cooled cooling (FCC) and field cooled warming (FCW) indicates measurements performed subsequently during cooling and warming with the field kept on, respectively. The numbers 1, 2, 3 define the measurement sequence. When the external magnetic field is in the ab-plane (a), the sequence is FCC1, followed by FCW and finally FCC2, while for B along the c-axis (b), the sequence is FCC followed by FCW and finally ZFC. TC denotes the critical temperature associated with the phase transition to the paramagnetic phase and at TC2 the magnetization starts to exhibit its characteristic behavior. The standard deviation of each data point is smaller than 100 A/m and as such smaller than the displayed markers.
