Charge transport in topological graphene nanoribbons and nanoribbon heterostructures
Mark J. J. Mangnus, Felix R. Fischer, Michael F. Crommie, Ingmar Swart, Peter H. Jacobse
Abstract
The structure of graphene nanoribbons crucially affects their electronic properties and transport. Here, the authors elucidate the transport in various nanoribbons and nanoribbon heterostructures via transport measurements with the scanning tunneling microscope and theoretical modeling based on an atomistic mean-field Hubbard model. This reveals an intricate interplay between transport, topology, eigenstate localization, magnetism, and emergent negative differential resistance.
Topics & Concepts
Graphene nanoribbonsHeterojunctionCondensed matter physicsGrapheneScanning tunneling microscopeQuantum tunnellingCharge (physics)Topology (electrical circuits)Materials scienceNanotechnologyPhysicsQuantum mechanicsCombinatoricsMathematicsGraphene research and applicationsQuantum and electron transport phenomenaSurface and Thin Film Phenomena