Broken sublattice symmetry states in Bernal stacked multilayer graphene

2016/10/31 by Chiho Yoon, Yunsu Jang, Jeil Jung +1 · 6 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Charge (physics) #Graphene #Graphene research and applications #Perpendicular #Phase diagram #Point reflection #Polarization (electrochemistry) #Symmetry (geometry) #Symmetry breaking #Topological Materials and Phenomena #cond-mat.mes-hall

paper · pdf · doi:10.1088/2053-1583/aa659a

published in 2D Materials 4(2), 021025 (IOP Publishing) · 6 pages, 3 figures + supplementary material (11 pages)

openalex created_date 2016/11/04 · openalex publication_date 2017/03/22 · arxiv created 2017/04/16 · arxiv updated 2017/04/18 · openalex updated_date 2026/08/05

Abstract

Abstract We analyze the ordered phases of Bernal stacked multilayer graphene in the presence of interaction induced band gaps due to sublattice symmetry breaking potentials, whose solutions can be analyzed in terms of light-mass and heavy-mass pseudospin doublets which have the same Chern numbers but opposite charge polarization directions. The application of a perpendicular external electric field reveals an effective Hund’s rule for the ordering of the sublattice pseudospin doublets in a tetralayer, while a similar but more complex phase diagram develops with increasing layer number.

Citations

• Many-body instability of Coulomb interacting bilayer graphene: Renormalization group approach
• Dynamical Screening and Excitonic Instability in Bilayer Graphene
• Chiral decomposition in the electronic structure of graphene multilayers
• Electronic transport in two-dimensional graphene
• Interaction-Driven Spectrum Reconstruction in Bilayer Graphene
• The electronic properties of graphene
• Electronic Structure of Multilayer Graphene