Itinerant spin polaron and metallic ferromagnetism in semiconductor moiré superlattices

Abstract

Itinerant spin polaron and metallic ferromagnetism are theoretically predicted in the Mott insulator in semiconductor moiré superlattices doped below and above half filling of the narrow moiré band, respectively. The existence of spin polaron can be directly identified from the kink in the dependence of the charge gap on the magnetic field.

arXiv commentfinal version; 6 pages of main text including 3 figures; 10 pages of Supplementary Material

References in corpus (18)

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• Hubbard model physics in transition metal dichalcogenide moiré bands
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• Kinetic Antiferromagnetism in the Triangular Lattice
• Ferromagnetism in the Hubbard model: instability of the Nagaoka state on the triangular, honeycomb and kagome lattices
• Competing magnetic states in transition metal dichalcogenide moiré materials
• Pairing from strong repulsion in triangular lattice Hubbard model
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• Pseudogap metal and magnetization plateau from doping moiré Mott insulator
• Light-Induced Ferromagnetism in Moiré Superlattices

Cited by in corpus (25)

• Kinetic Magnetism in Triangular Moiré Materials
• Observation of Nagaoka Polarons in a Fermi-Hubbard Quantum Simulator
• Directly imaging spin polarons in a kinetically frustrated Hubbard system
• Chiral Kondo Lattice in Doped MoTe${}_2$/WSe${}_2$ Bilayers
• Tunable spin and valley excitations of correlated insulators in $\Gamma$-valley moiré bands
• Hofstadter states and reentrant charge order in a semiconductor moiré lattice
• Metal-insulator transition in transition metal dichalcogenide heterobilayer: accurate treatment of interaction
• Neural network approach to quasiparticle dispersions in doped antiferromagnets
• Polaronic mechanism of Nagaoka ferromagnetism in Hubbard models
• Strong-coupling phases of trions and excitons in electron-hole bilayers at commensurate densities
• Solving and visualizing fractional quantum Hall wavefunctions with neural network
• Quantum Melting of Generalized Wigner Crystals in Transition Metal Dichalcogenide Moiré Systems
• Spin-polarons and ferromagnetism in doped dilute Wigner-Mott insulators
• Exciton and light induced ferromagnetism from doping a moiré Mott insulator
• Topological $p_x+i{p}_y$ inter-valley coherent state in Moiré MoTe${}_2$/WSe${}_2$ heterobilayers
• Itinerant ferromagnetism in transition metal dichalcogenides moiré superlattices
• Kinetic magnetism in the crossover between the square and triangular lattice Fermi-Hubbard models
• Instability of Nagaoka State and Quantum Phase Transition via Kinetic Frustration Control
• Magnonic Superconductivity
• Origin and stability of generalized Wigner crystallinity in triangular moiré systems
• Geometric Frustration Assisted Kinetic Ferromagnetism in Doped Mott Insulators
• Exploring kinetically induced bound states in triangular lattices with ultracold atoms: spectroscopic approach
• Insulating charge transfer ferromagnetism
• Doping-induced Quantum Anomalous Hall Crystals and Topological Domain Walls
• Spin-spiral instability of the Nagaoka ferromagnet in the crossover between square and triangular lattices