Swapping exchange and spin-orbit induced correlated phases in proximitized Bernal bilayer graphene

Abstract

Ex-so-tic van der Waals heterostructures take advantage of the electrically tunable layer polarization to swap proximity exchange and spin-orbit coupling in the electronically active region. Perhaps the simplest example is Bernal bilayer graphene (BBG) encapsulated by a layered magnet from one side and a strong spin-orbit material from the other. Taking WS${}_2$/BBG/Cr${}_2$Ge${}_2$Te${}_6$ as a representative ex-so-tronic device, we employ realistic \emph{ab initio}-inspired Hamiltonians and effective electron-electron interactions to investigate the emergence of correlated phases within the random phase approximation. We find that for a given doping level, exchange and spin-orbit coupling induced Stoner and intervalley coherence instabilities can be swapped, allowing to explore the full spectrum of correlated phases within a single device.

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Cited by in corpus (10)

• Symmetry-broken metallic orders in spin-orbit-coupled Bernal bilayer graphene
• Layer-Dependent Quantum Anomalous Hall Effect in Rhombohedral Graphene
• Valley polarization, magnetization, and superconductivity in bilayer graphene near the van Hove singularity
• Correlated phases in rhombohedral multilayer graphene
• Ferroelectric switching control of spin current in graphene proximitized by In${}_2$Se${}_3$
• Topological frequency conversion in rhombohedral multilayer graphene
• Topological phases, van Hove singularities, and spin texture in magic-angle twisted bilayer graphene in the presence of proximity-induced spin-orbit couplings
• Pair density wave in quarter metals from a repulsive fermionic interaction in graphene heterostructures: A renormalization group study
• Charge density waves and stripes in quarter metals of graphene heterostructures
• Gate and Carriers tunable Valley Imbalance in Topological Proximitized Rhombohedral Trilayer Graphene