Spin-resolved scattering through spin-orbit nanostructures in graphene
De Martino, A.
- Publisher: American Physical Society
QC | Condensed Matter - Mesoscale and Nanoscale Physics | Condensed Matter - Other Condensed Matter
arxiv: Condensed Matter::Strongly Correlated Electrons
We address the problem of spin-resolved scattering through spin-orbit nanostructures in graphene, i.e., regions of inhomogeneous spin-orbit coupling on the nanometer scale. We discuss the phenomenon of spin-double refraction and its consequences on the spin polarization. Specifically, we study the transmission properties of a single and a double interface between a normal region and a region with finite spin-orbit coupling, and analyze the polarization properties of these systems. Moreover, for the case of a single interface, we determine the spectrum of edge states localized at the boundary between the two regions and study their properties.