2015/01/31 by Martin Schneider, Daiara Faria, Silvia Viola Kusminskiy +1 · 2 citations
Materials Science · Mathematics · Physics and Astronomy · #Condensed matter physics #Deformation (meteorology) #Geometry #Graphene #Graphene research and applications #Local density of states #Local symmetry #Mathematics #Metamaterials and Metasurfaces Applications #Noncommutative and Quantum Gravity Theories #Physics #Quantum mechanics #Scaling #Scattering #Symmetry (geometry) #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.91.161407
published as Phys. Rev. B 91, 161407 (2015) · Minimal changes, version as published
openalex publication_date 2015/04/15 · arxiv created 2015/04/17 · arxiv updated 2015/04/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We calculate the local density of states (LDOS) for an infinite graphene sheet with a single centrosymmetric out-of-plane deformation, in order to investigate measurable strain signatures on graphene. We focus on the regime of small deformations and show that the strain-induced pseudomagnetic field induces an imbalance of the LDOS between the two triangular graphene sublattices in the region of the deformation. Real-space imaging reveals a characteristic sixfold symmetry pattern where the sublattice symmetry is broken within each fold, consistent with experimental and tight-binding observations. The open geometry we study allows us to make use of the usual continuum model of graphene and to obtain results independent of boundary conditions. We provide an analytic perturbative expression for the contrast between the LDOS of each sublattice, showing a scaling law as a function of the amplitude and width of the deformation. We confirm our results by a numerically exact iterative scattering matrix method.