Electronic properties of mesoscopic graphene structures: charge   confinement and control of spin and charge transport
  This brief review discusses electronic properties of mesoscopic graphene-based structures. These allow controlling the confinement and transport of charge and spin; thus, they are of interest not only for fundamental research, but also for applications. The graphene-related topics covered here are: edges, nanoribbons, quantum dots, $pn$-junctions, $pnp$-structures, and quantum barriers and waveguides. This review is partly intended as a short introduction to graphene mesoscopics. 
A.V. Rozhkov, G. Giavaras, Yury P. Bliokh, Valentin Freilikher, Franco   Nori
cond-mat.mes-hall