Fig. 4: Magnetic properties and heat flow for MnCo(Ge0.98In0.02) and Mn(Co0.98In0.02)Ge.

a Temperature dependence of the magnetization under 0.01 T for the MnCo(Ge0.98In0.02) and Mn(Co0.98In0.02)Ge alloys. The inset shows the M‒H curves at 5 K for the two samples, and the complete M‒H curves are given in Fig. S1. b Heat flow curves after the baseline subtraction at atmospheric pressure measured at a temperature rate of 1 K/min. The arrows indicate the heating and cooling processes, and the shaded parts represent hysteresis.