DSpace@MIT (Massachusetts Institute of Technology) · 2017 · 32 citations · 0 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsMaterials PhysicsTopologyElectronic Band StructureElectronic Structure Of SolidsTopological MaterialsTopological Phases Of MatterBrillouin ZonesConductionConduction BandFloquet TheoryLandau LevelsTopological SemimetalsValence BandValence Band Structure
In topological semimetals, the valence band and conduction band meet at zero-dimensional nodal points or one-dimensional nodal rings, which are protected by band topology and symmetries. In this Rapid Communication, we introduce "nodal-link semimetals", which host linked nodal rings in the Brillouin zone. We put forward a general recipe based on the Hopf map for constructing models of nodal-link semimetal. The consequences of nodal ring linking in the Landau levels and Floquet properties are investigated.