Electronic ground state properties of strained graphene

Abstract

We consider the effect of the Coulomb interaction in strained graphene using tight-binding approximation together with the Hartree-Fock interactions. The many-body energy dispersion relation, anisotropic Fermi velocity renormalization and charge compressibility in the presence of uniaxial strain are calculated. We show that the quasiparticle quantities are sensitive to homogenous strain and indeed, to its sign. The charge compressibility is enhanced by stretching and suppressed by compressing a graphene sheet. We find a reduction of Fermi velocity renormalization along the direction of graphene deformation, in good agreement with the recent experimental observation.

19 pages, 6 figures. To appear in Phys. Rev. B

References in corpus (18)

• Electric Field Effect in Atomically Thin Carbon Films
• The electronic properties of graphene
• Uniaxial Strain in Graphene by Raman Spectroscopy: G peak splitting, Gruneisen Parameters and Sample Orientation
• A tight-binding approach to uniaxial strain in graphene
• Ripple Texturing of Suspended Graphene Atomic Membranes
• Strong suppression of weak (anti)localization in graphene
• Evidence of structural strain in epitaxial graphene layers on 6H-SiC(0001)
• Symmetry-based approach to electron-phonon interactions in graphene
• Zero modes of tight binding electrons on the honeycomb lattice
• Many-body interactions in quasi-freestanding graphene
• Chirality and Correlations in Graphene
• Evidence for Strain-Induced Local Conductance Modulations in Single-Layer Graphene on SiO2
• Graphene: A Pseudochiral Fermi Liquid
• Density dependent exchange contribution to $\partial \mu /\partial n$ in extrinsic graphene
• Fermi Velocity Enhancement in Monolayer and Bilayer Graphene
• Ground-state properties of gapped graphene using the random phase approximation
• Effect of disorder on the ground-state properties of graphene
• Spin polarization dependence of quasiparticle properties in graphene

Cited by in corpus (13)

• Electronic Properties of Carbon Nanostructures
• Plasmonic physics of 2D crystalline materials
• Valley polarized transport in strained graphene based Corbino disc
• Landau Levels in Uniaxially Strained Graphene: A Geometrical Approach
• Phase-space representation of Landau and electron coherent states for uniaxially strained graphene
• Valley-dependent time evolution of coherent electron states in tilted anisotropic Dirac materials
• Electronic structure and layer-resolved transmission of bilayer graphene nanoribbon in the presence of vertical fields
• Anomalous Floquet tunneling in uniaxially strained graphene
• Charge compressibility and quantum magnetic phase transition in MoS${}_2$
• Pseudo Landau levels, negative strain resistivity, and enhanced thermopower in twisted graphene nanoribbons
• Mott transition in the Hubbard model on anisotropic honeycomb lattice with implications for strained graphene: Gutzwiller variational study
• New supercurrent pattern in quantum point contact with strained graphene nanoribbon
• Manifestation of a topological gapless phase in a two-dimensional chiral symmetric system through Loschmidt echo