Synthesis and Characterization of RuSr₂R_1.6Ce_0.4Cu₂O₁₀ (R = Gd, Eu, and Sm) Magnetosuperconductors

Figure 5

M-H behavior of Ru, Gd-1222 and Ru, Eu-1222 samples at 5 K showing magnified image at low magnetic field shows clear diamagnetic state.