▎ 摘　　要

We consider spin-dependent scatterers with large scattering cross sections in graphene-a Zeeman-like and an intrinsic spin-orbit coupling impurity-and show that a gated ring around them can be engineered to produce an efficient control of the spin-dependent transport, like current spin polarization and spin Hall angle. Our analysis is based on a spin-dependent partial-waves expansion of the electronic wave functions in the continuum approximation, described by the Dirac equation.