The Orbitally Selective Mott Phase in Electron Doped Twisted TMDs: A Possible Realization of the Kondo Lattice Model
arXiv:2103.06313 · doi:10.1103/PhysRevResearch.3.043173
Abstract
Moiré super-potentials in two-dimensional materials allow unprecedented control of the ratio between kinetic and interaction energy. By this, they pave the way to study a wide variety of strongly correlated physics under a new light. In particular, the transition metal dichalcogenides (TMDs) are promising candidate "quantum simulators" of the Hubbard model on a triangular lattice. Indeed, Mott and generalized Wigner crystals have been observed in such devices. Here we theoretically propose to extend this model into the multi-orbital regime by focusing on electron doped systems at filling higher than 2. As opposed to hole bands, the electronic bands in TMD materials include two, nearly degenerate species, which can be viewed as two orbitals with different effective mass and binding energy. Using realistic band-structure parameters and a slave-rotor mean-field theory, we find that an orbitally selective Mott (OSM) phase can be stabilized over a wide range of fillings, where one band is locked in a commensurate Mott state, while the other remains itinerant with variable density. This scenario thus, realizes the basic ingredients in the Kondo lattice model: A periodic lattice of localized magnetic moments interacting with metallic states. We also discuss possible experimental signatures of the OSM state.
References in corpus (45)
- Magic-angle graphene superlattices: a new platform for unconventional superconductivity
- Correlated Insulator Behaviour at Half-Filling in Magic Angle Graphene Superlattices
- Moire bands in twisted double-layer graphene
- Tuning superconductivity in twisted bilayer graphene
- Superconductors, Orbital Magnets, and Correlated States in Magic Angle Bilayer Graphene
- Intrinsic quantized anomalous Hall effect in a moiré heterostructure
- Quantum Criticality in Heavy Fermion Metals
- Three-band tight-binding model for monolayers of group-VIB transition metal dichalcogenides
- Optical detection of Mott and generalized Wigner crystal states in WSe2/WS2 moiré superlattices
- Magic continuum in twisted bilayer WSe2
- Magic Angle Spectroscopy
- Topological insulators in twisted transition metal dichalcogenide homobilayers
- Hubbard model physics in transition metal dichalcogenide moiré bands
- Tunable Correlated Chern Insulator and Ferromagnetism in Trilayer Graphene/Boron Nitride Moiré Superlattice
- The break up of heavy electrons at a quantum critical point
- Charge-Order and Broken Rotational Symmetry in Magic Angle Twisted Bilayer Graphene
- Abundance of correlated insulating states at fractional fillings of WSe/WS moiré superlattices
- Onset of antiferromagnetism in heavy fermion metals
- Evidence of Gate-Tunable Mott Insulator in Trilayer Graphene-Boron Nitride Moiré Superlattice
- Weak magnetism and non-Fermi liquids near heavy-fermion critical points
- Origin of Mott insulating behavior and superconductivity in twisted bilayer graphene
- All "Magic Angles" Are "Stable" Topological
- Fractionalized Fermi liquids
- Cascade of electronic transitions in magic-angle twisted bilayer graphene
- Cascade of Phase Transitions and Dirac Revivals in Magic Angle Graphene
- Microscopic evidence for a chiral superconducting order parameter in the heavy fermion superconductor UTe2
- Nematicity and Competing Orders in Superconducting Magic-Angle Graphene
- A Universal Critical Density Underlying the Physics of Electrons at the LaAlO3/SrTiO3 Interface
- Continuous Mott transition in semiconductor moiré superlattices
- Symmetry, maximally localized Wannier states, and low energy model for the twisted bilayer graphene narrow bands
- Model for Metal-Insulator Transition in Graphene Superlattices and Beyond
- Slave-rotor mean field theories of strongly correlated systems and the Mott transition in finite dimensions
- Review of U-based Ferromagnetic Superconductors: Comparison between UGe2, URhGe, and UCoGe
- Entropic evidence for a Pomeranchuk effect in magic angle graphene
- Shubnikov-de Haas oscillations of high mobility holes in monolayer and bilayer WSe: Landau level degeneracy, effective mass, and negative compressibility
- Moiré quantum chemistry: charge transfer in transition metal dichalcogenide superlattices
- Non-Fermi Liquid Behavior and Double-Exchange Physics in Orbital-Selective Mott Systems
- Unexpected Behavior of the Local Compressibility Near the B=0 Metal-Insulator Transition
- Orbital-selective Mott transitions: Heavy fermions and beyond
- Emulating heavy fermions in twisted trilayer graphene
- Self-consistent slave rotor mean field theory for strongly correlated systems
- Emergent Fermi surface in a triangular-lattice SU(4) quantum antiferromagnet
- Competition of Spinon Fermi Surface and Heavy Fermi Liquids states from the Periodic Anderson to the Hubbard model
- Slave-rotor theory on magic-angle twisted bilayer graphene
- Dimer description of the SU(4) antiferromagnet on the triangular lattice
Cited by in corpus (20)
- Tunable bilayer Hubbard model physics in twisted WSe2
- Gate-tunable heavy fermions in a moiré Kondo lattice
- Chiral Kondo Lattice in Doped MoTe/WSe Bilayers
- Gate-tunable heavy fermion quantum criticality in a moiré Kondo lattice
- Topological superconductivity in doped magnetic moiré semiconductors
- Heterogeneous Ta-dichalcogenide bilayer: heavy fermions or doped Mott physics?
- Kondo effect and its destruction in hetero-bilayer transition metal dichalcogenides
- Theory of intervalley-coherent AFM order and topological superconductivity in tWSe
- Topological Kondo semimetal and insulator in AB-stacked heterobilayer transition metal dichalcogenides
- Pomeranchuk Effect and Tunable Quantum Phase Transitions in 3L-MoTe2/WSe2
- Apparent Kondo effect in Moiré TMD bilayers: Heavy fermions or disorder?
- Spontaneous layer selective Mott phase in the bilayer Hubbard model
- Intermediate-scale theory for electrons coupled to frustrated local-moments
- linear resistivity from magneto-elastic scattering: application to PdCrO
- Topological Kondo semimetals emulated in hetero-bilayer transition metal dichalcogenides
- Chiral spin liquid phase in an optical lattice at mean-field level
- Gate-defined Kondo lattices with valley-helical quantum dot arrays
- SU(4) Kondo Lattice in Semiconductor Moiré Materials
- Emergent Chiral Metal near a Kondo Breakdown Quantum Phase Transition
- Selective Kondo screening and strange metallicity by sliding Dirac semimetals