Dual irreversible behavior of temperature dependence of magnetization in the spinel-type Cu1−xAgxCrSnS4

► Dual irreversible behavior has been found in the spinel Cu1−xAgxCrSnS4. ► The temperature dependence of magnetization M(T) exhibits dual irreversibility. ► The field variation of M(T) is shown over 5-200 Oe. ► The specimens with 0.45=x<0.60 can cause the hump anomaly in 30K