2013/11/30 by M. Oliva-Leyva, Gerardo G. Naumis · 52 citations
Materials Science · Mathematics · Physics and Astronomy · #Anisotropy #Carbon Nanotubes in Composites #Condensed matter physics #Conductivity #Density of states #Electron #Fermi energy #Fermi level #Graphene #Graphene research and applications #Hamiltonian (control theory) #Materials science #Mathematics #Nanotechnology #Physics #Quantum mechanics #Surface and Thin Film Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1088/0953-8984/26/12/125302
published in Journal of Physics Condensed Matter 26(12), 125302 (IOP Publishing) · In previous version of our work, a term was missing in equation (17). In version 2, the expression for the AC conductivity of graphene under uniform strain (equation (17)) is corrected. (A corrigendum has been sent to J. Phys.: Condens. Matter)
openalex publication_date 2014/03/06 · arxiv created 2014/05/30 · arxiv updated 2014/06/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The density of states and the AC conductivity of graphene under uniform strain are calculated using a new Dirac Hamiltonian that takes into account the main three ingredients that change the electronic properties of strained graphene: the real displacement of the Fermi energy, the reciprocal lattice strain and the changes in the overlap of atomic orbitals. Our simple analytical expressions for the density of states and the AC conductivity generalize previous expressions for uniaxial strain. The results suggest a way to measure the Grüneisen parameter β that appears in any calculation of strained graphene, as well as the emergence of a sort of Hall effect due to shear strain.