Chiral symmetry restoration in monolayer graphene induced by Kekulé distortion

Yasufumi Araki

研究成果: Article査読

16 被引用数 (Scopus)

抄録

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 Kekulé-patterned lattice distortion externally. Such a phase transition is investigated analytically using the techniques of strong-coupling expansion on the lattice gauge theory model by preserving the original honeycomb lattice structure. We discuss the relation between the chiral phase transition and the spectral gap amplitude, and we show the modification of the dispersion relation of the quasiparticles.

本文言語English
論文番号113402
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
84
11
DOI
出版ステータスPublished - 2011 9 6

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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