Seminarium "Teoria i Modelowanie Nanostruktur"

Graphene and other 2D atomic systems have emerged recently as promising candidates for charge electronics and for spintronics. Engineering of spintronic devices based on these systems requires quantitative understanding of effects of the spin-orbit coupling in the electronic structure, as well as a possibility to tune spin splitting by external factors, such as decoration of layers with various atoms. I would like to present relativistic ab initio calculations (DFT) of band structure near point K of these crystals, and subsequently a general effective Hamiltonian deduced from the theory of invariants that mimics patterns of DFT.