Symmetry-broken metallic orders in spin-orbit-coupled Bernal bilayer graphene

Abstract

Here, the authors investigate the phase diagram of Bernal bilayer graphene in the presence of long-range Coulomb interactions, short-range Hund's coupling, and proximity-induced Ising spin-orbit coupling using self-consistent Hartree-Fock calculations. Their analysis reveals a rich landscape of symmetry-broken phases resulting from the interplay between these three ingredients, which is tunable via doping and applied displacement field. Particular focus is placed on spin-canted and intervalley coherent states that may hold the key to understanding spin-orbit-enabled superconductivity observed in this platform.

Topics & Concepts