Figure 1

(a) Temperature-dependence of resistivity under different magnetic fields. (b) Temperature dependence of relative susceptibility under different fields. The inset indicates details around 44 K. (c) Field-dependence of resistivity at 37 K drawn from (a). (d) Field-dependence of relative susceptibility Δχ at 37 K drawn from (b). The reason for subtracting the susceptibility at 60 K is to eliminate the contribution from magnetic background. The data in (c) and (d) are carefully fitted to produce fitting functions (red lines), which are taken as input for the ESR fitting in a normal conducting state as described in the text. The detailed fitting functions and parameters can be found in the Supplementary.