2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/95640We develop a theory of extrinsic spin currents in semiconductors, resulting from spin-orbit coupling at charged scatterers, which leads to skew scattering and side jump contributions to the spin Hall conductance. Applying the theory to bulk n-GaAs, without any free parameters, we find spin currents that are in reasonable agreement with recent experiments by Kato et al. [Science 306, 1910 (2004)].5 pages, 1 figureMesoscale and Nanoscale Physicstext