2014/05/31 by R. Carrillo-Bastos, Ramón Carrillo-Bastos, Daiara Faria +6 · 10 citations
Engineering · Materials Science · Physics and Astronomy · #Asymmetry #Condensed matter physics #Conductance #Deformation (meteorology) #Density of states #Electron #Fermi energy #Gaussian #Graphene #Graphene nanoribbons #Graphene research and applications #Local density of states #Materials science #Molecular Junctions and Nanostructures #Nanotechnology #Physics #Quantum and electron transport phenomena #Quantum mechanics #Thermal conduction #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.90.041411
published as (2014) Phys. Rev. B. 90(4): 041411 · 5 pages, 5 figures
arxiv created 2014/07/04 · openalex publication_date 2014/07/23 · arxiv updated 2014/08/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The coupling of geometrical and electronic properties is a promising venue to engineer conduction properties in graphene. Confinement added to strain allows for interplay of different transport mechanisms with potential device applications. To investigate strain signatures on transport in confined geometries, we focus on graphene nanoribbons (GNRs) with circularly symmetric deformations. In particular, we study GNRs with an inhomogeneous out-of-plane Gaussian deformation, connected to reservoirs. We observe an enhancement of the density of states in the deformed region, accompanied with a decrease in the conductance, signaling the presence of confined states. The local density of states exhibits a sixfold symmetric structure with an oscillating sublattice occupation asymmetry that persists for a wide range of energy and model parameters.