Figure 2

M-T curves for the bulk, powder and composites (S11, S21 and S31) with a magnetic field of 0.1 T (a) and 5 T (b). The method to obtain Ms, Mf, As, Af and ΔM is shown in the curves of S11 as instance. (c) M-T curves for S31 with magnetic fields of 0.1, 1, 2, 3, 4 and 5 T. (d) Normalized M-T curves for S31 in the cooling process. The black arrow indicates the curves shift to higher temperature by 6.71 K.