▎ 摘　　要

Electronic transport through the Corbino disk in a doped graphene-substrate system is studied taking into account intrinsic spin-orbit interaction (SOI) and perpendicular magnetic field. By combining the intrinsic SOI and substrate-graphene effects, we are able to break the Kramers degeneracy associated to s(z) = +/- 1 degrees of freedom and to control the spin-polarized resonant transmission channels. The latter manifests itself in both conductance and Fano factor characteristics. As an astonishing result, we have pointed out a new universal limit for the quantum shot noise, related to this particular topology. (C) 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim