Figure 4: The anomaly in the inverse spin Hall effect near TC.
From: The spin Hall effect as a probe of nonlinear spin fluctuations

(a) Inverse spin Hall resistance ΔRISHE of NixPd1-x middle wires with Ni concentration x=0.07 (black square), 0.08 (red dot) and 0.09 (blue triangle) as a function of temperature. The anomaly of ΔRISHE for each Ni concentration appears only near its TC. (b) The anomalous component δΔRISHE for Ni concentration equal to x=0.07 (black square), 0.08 (red dot) and 0.09 (blue triangle) plotted as a function of normalized temperature (T−TC)/TC. For comparison, we also show the uniform second-order nonlinear susceptibility χ2uni (black solid line).