fig3

Figure 3. Temperature dependence of ZFC for the (A) Tb_1-xEr_xCo₂ and (B) Tb_1-xEr_xCo₂Mn_0.1 compounds under an applied magnetic field of 500 Oe from 5 to 380 K. FC-ZFC and the derivative curves of FC/ZFC of (C) TEC and (D) TECM compounds, respectively. (E) Curie temperature for Tb_1-xEr_xCo₂Mn_y (the results are obtained from the derivative curves of FC/ZFC). (F) Isothermal M-H curves (-4 to 4 T) for TECM.