Chiral Kondo Lattice in Doped MoTe${}_2$/WSe${}_2$ Bilayers

Abstract

We theoretically study the interplay between magnetism and a heavy Fermi liquid in the AB stacked transition metal dichalcogenide bilayer system MoTe${}_2$/WSe${}_2$ in the regime in which the Mo layer supports localized magnetic moments coupled by interlayer electron tunnelling to a weakly correlated band of itinerant electrons in the W layer. We show that the interlayer electron transfer leads to a chiral Kondo exchange, with consequences including a strong dependence of the Kondo temperature on carrier concentration, a topological hybridization gap and an anomalous Hall effect. The theoretical model exhibits two phases, a small Fermi surface magnet and a large Fermi surface heavy Fermi liquid; the transition between them is first order. A low-energy theory is developed for the the transport properties of the two states. Implications of our results for present and future experiments on MoTe${}_2$/WSe${}_2$ bilayer heterostructures are discussed.

(7+9) pages, (4+6) figures

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Cited by in corpus (38)

• Kondo lattice model in magic-angle twisted bilayer graphene
• Interaction-driven topological phase diagram of twisted bilayer MoTe${}_2$
• Topological superconductivity in doped magnetic moiré semiconductors
• Heterogeneous Ta-dichalcogenide bilayer: heavy fermions or doped Mott physics?
• Coupled topological flat and wide bands: Quasiparticle formation and destruction
• Emergent flat band and topological Kondo semimetal driven by orbital-selective correlations
• Multilayer graphene with a superlattice potential
• Metal-insulator transition in transition metal dichalcogenide heterobilayer: accurate treatment of interaction
• Superconductivity in twisted WSe${}_2$ from topology-induced quantum fluctuations
• Strong-coupling phases of trions and excitons in electron-hole bilayers at commensurate densities
• Kondo effect and its destruction in hetero-bilayer transition metal dichalcogenides
• Topological Kondo semimetal and insulator in AB-stacked heterobilayer transition metal dichalcogenides
• Theory of intervalley-coherent AFM order and topological superconductivity in tWSe${}_2$
• Nature of the unconventional heavy fermion Kondo state in monolayer CeSiI
• Spin-polarons and ferromagnetism in doped dilute Wigner-Mott insulators
• Intrinsically-multilayer moiré heterostructures
• Correlated Topological Mixed-Valence Insulators in Moiré Hetero-Bilayers
• Helical trilayer graphene in magnetic field: Chern mosaic and higher Chern number ideal flat bands
• Dynamic mass generation and topological order in overscreened Kondo lattices
• Apparent Kondo effect in Moiré TMD bilayers: Heavy fermions or disorder?
• Ferromagnetic semimetal and charge-density wave phases of interacting electrons in a honeycomb moiré potential
• One-dimensionality signature in optical conductivity of heavy-fermion CeIr${}_3$B${}_2$
• Double exchange, itinerant ferromagnetism and topological Hall effect in moiré heterobilayer
• Twistronics and moiré superlattice physics in 2D transition metal dichalcogenides
• Itinerant topological magnons and spin excitons in twisted transition metal dichalcogenides: Mapping electron topology to spin counterpart
• Topological Kondo semimetals emulated in hetero-bilayer transition metal dichalcogenides
• Oscillate and Renormalize: Fast Phonons Reshape the Kondo Effect in Flat Band Systems
• Interplay between topology and electron-electron interactions in the moiré MoTe${}_2$/WSe${}_2$ heterobilayer
• Band structure picture for topology in strongly correlated systems with the ghost Gutzwiller ansatz
• Gate-defined Kondo lattices with valley-helical quantum dot arrays
• Heavy fermion phase diagram in magic-angle twisted trilayer graphene
• Flat-Band Driven Kondo Breakdown and Reentrant Effects in Heavy-Fermion Moiré Superlattices
• Selective Kondo screening and strange metallicity by sliding Dirac semimetals
• SU(4) Kondo Lattice in Semiconductor Moiré Materials
• Doping-induced Quantum Anomalous Hall Crystals and Topological Domain Walls
• Higher Chern bands in helical homotrilayer transition metal dichalcogenides
• Particle-hole Symmetric Slave Boson Method for the Mixed Valence Problem
• Emergent Chiral Metal near a Kondo Breakdown Quantum Phase Transition