Spin Hall angle (a) and spin Hall conductivity (b) of Pt as a function of temperature obtained from two devices with and different (see legend). Spin Hall angle (c) and spin Hall conductivity (d) of Au as a function of temperature obtained from two devices with and different (see legend).
Spin Hall resistivity as a function of the square of the total resistivity for (a) Pt and (b) Au (black dots). The red solid line is a fit of the data to Eq. (6), where phonon skew scattering contribution is neglected. Spin Hall resistivity as a function of the total resistivity for (c) Pt and (d) Au (black dots). The red solid line is a fit of the data to Eq. (8), taking into account phonon skew scattering contribution.