Chiral symmetry restoration in monolayer graphene induced by Kekule distortion

Abstract

We propose a chiral symmetry restoration mechanism in monolayer graphene, in analogy with the strongly coupled gauge theory. The chiral (sublattice) symmetry of graphene, which is spontaneously broken under the effectively strong Coulomb interaction, is restored by introducing the Kekule-patterned lattice distortion externally. Such a phase transition is investigated analytically by the lattice gauge theory model with the original honeycomb lattice structure. We discuss the relation between the chiral phase transition and the spectral gap amplitude.

4 pages, 3 figures; published version

References in corpus (9)

• Electric Field Effect in Atomically Thin Carbon Films
• The electronic properties of graphene
• Topological Mott Insulators
• Is graphene in vacuum an insulator?
• Quantum critical point in graphene approached in the limit of infinitely strong Coulomb interaction
• Lattice field theory simulations of graphene
• Energy gap opening in submonolayer lithium on graphene: Local density functional and tight-binding calculations
• Lattice gauge theory model for graphene
• Kekule-distortion-induced Exciton instability in graphene

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• Zone-Boundary Phonon Induced Mini Band Gap Formation in Graphene
• Nano-scale strain engineering of graphene and graphene-based devices
• Phase structure of 2-dimensional topological insulators by lattice strong coupling expansion
• Phase structure of monolayer graphene from effective U(1) gauge theory on honeycomb lattice
• Spin Versus Charge Density Wave Order in Graphene-like Systems