Figure 2

Magnetic measurements. (a) and (b) Temperature dependence of magnetic susceptibility measured in the FC process for samples A and B. The inset shows an enlargement of the dependence of the magnetization on temperature around T_Curie measured at 10 Oe. (c) and (d) Dependence of diamagnetic susceptibility \({\left(4\pi \Delta M/H\right)}_{\min }\) on temperature for various magnetic fields in samples A and B. (e) Temperature dependence of magnetic susceptibility for FC from 145 to 2 K in various magnetic fields after cooling from 190 to 145 K while applying a magnetic field of 5000 Oe. (f) Dependence of diamagnetic susceptibility \({\left(4\pi \Delta M/H\right)}_{\min }\) on temperature for magnetic fields in sample B. (g) Comparison of diamagnetic susceptibility at 5 Oe in two different FC measurements. The purple plot was measured by FC at 5 Oe from 190 to 2 K. The red plot was measured by FC at 5 Oe from 145 to 2 K after cooling from 195 to 145 K while maintaining a magnetic field of 5000 Oe. Larger diamagnetism was observed by aligning the direction of the ferromagnetic magnetization.