Abstract
We investigate the extrinsic spin Hall effect (SHE) in the electron gas model due to magnetic impurities, by focusing on Ce- and Yb-impurities. In the dilute limit, the skew scattering term dominates the side jump term. For Ce-impurities, the spin Hall angle αSH due to skew scattering is given by -8πδ2/7, where δ2 (≪1) is the phase shift for the d (l=2) partial wave. Since αSH reaches O(10−1) if δ2≳0.03, considerably large SHE is expected to emerge in metals with rare-earth impurities. The present study provides a highly efficient way to generate a spin current.
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