A design scheme for topological insulators based bonds, bands, symmetry and spin orbit coupling

摘要

We report about a design scheme for topological insulators fromthe viewpoint of materials science or solid state chemistry.Topological insulators are a nice example for theory guidedmaterials research. The electronic structure can be translated intothe language of chemistry. The symmetry of the crystal- and theband structure, orbitals and spin orbit coupling determine whethera semiconductor is topologic or trivial. In this paper we willdiscuss the necessary and sufficient conditions for new TImaterials, based in symmetry and bonding arguments.