Straightforward Probing of Polarization and Spin-Resolved Transmission through Potential Barriers in Silicene

摘要

The low-energy physics of silicene is described by Dirac electrons with a strong spin-orbit interaction and its band structure can be controlled by an external electric field . We evaluate the electronic transmission through single and double barriers in silicene as a function of the angle of incidence , the electron energy , and the strength of the field . We find a spin-resolved transmission, reflected in the polarization , and a conductance qualitatively different in some ranges of than that in graphene. exhibits quasiperiodic resonances versus in double-barrier structures.