Figure 2
(a) Temperature dependence of magnetization under zero-field-cooling (ZFC) and 1 T in YbxLu1–xMgGaO4. Inset: zoomed view of the low-temperature data. (b) Magnetic field dependence of magnetization at 2.5 K. The colored dash lines show Van Vleck paramagnetism extracted from the linear-field-dependent magnetization data (>10 T). (c) Curie-Weiss fits of magnetization data at low temperatures (<20 K). Inset: fitted (AF) Weiss temperatures. (d) Susceptibilities measured under ZFC and FC from 0.48 to 30 K. No splitting between the ZFC and the FC data was observed at temperatures above 0.48 K. Both the cooling field Hc and the measurement field Hm are 100 Oe. Inset: complete magnetic loop measured at 0.5 K. In both the first and third quadrants, the data collected under increasing fields are perfectly overlapped by those collected during decreasing field.
