Moiré Modulation of Charge Density Waves

Abstract

Here we investigate how charge density waves (CDW), inherent to a monolayer, are effected by creating twisted van der Waals structures. Homobilayers of metallic transition metal dichalcogenides (TMDs), at small twist angles where there is significant atomic reconstruction, are utilised as an example to investigate the interplay between the moiré domain structure and CDWs of different periods. For $\sqrt{3}\times \sqrt{3}$ CDWs, there is no geometric constraint to prevent the CDWs from propagating throughout the moiré structure. Whereas for $2\times 2$ CDWs, to ensure the CDWs in each layer have the most favourable interactions in the domains, the CDW phase must be destroyed in the connecting domain walls. For $3\times 3$ CDWs with twist angles close to 180 degree, moiré-scale triangular structures can form; while close to 0 degree, moiré-scale dimer domains occur. The star-of-David CDW ($\sqrt{13}\times \sqrt{13}$) is found to host CDWs in the domains only, since there is one low energy stacking configuration, similar to $2\times 2$ CDWs. These predictions are offered for experimental verification in twisted bilayer metallic TMDs which host CDWs, and we hope this will stimulate further research on the interplay between the moiré supperlattice and CDW phases intrinsic to the comprising 2D materials.

References in corpus (59)

• Magic-angle graphene superlattices: a new platform for unconventional superconductivity
• Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
• Correlated Insulator Behaviour at Half-Filling in Magic Angle Graphene Superlattices
• Moire bands in twisted double-layer graphene
• Tuning superconductivity in twisted bilayer graphene
• Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene
• Superconductors, Orbital Magnets, and Correlated States in Magic Angle Bilayer Graphene
• Intrinsic quantized anomalous Hall effect in a moiré heterostructure
• Magic continuum in twisted bilayer WSe2
• Magic Angle Spectroscopy
• Graphene Bilayers with a Twist
• Characterization of collective ground states in single-layer NbSe2
• Imaging Electronic Correlations in Twisted Bilayer Graphene near the Magic Angle
• Charge-Order and Broken Rotational Symmetry in Magic Angle Twisted Bilayer Graphene
• Moiré heterostructures as a condensed matter quantum simulator
• Lattice relaxation and energy band modulation in twisted bilayer graphenes
• Fractional Chern insulators in magic-angle twisted bilayer graphene
• Twistronics: Manipulating the Electronic Properties of Two-dimensional Layered Structures through their Twist Angle
• Strange metal in magic-angle graphene with near Planckian dissipation
• Untying the insulating and superconducting orders in magic-angle graphene
• Ultraflat bands and shear solitons in Moiré patterns of twisted bilayer transition metal dichalcogenides
• Atomic reconstruction in twisted bilayers of transition metal dichalcogenides
• Cascade of electronic transitions in magic-angle twisted bilayer graphene
• Strongly Correlated Chern Insulators in Magic-Angle Twisted Bilayer Graphene
• Cascade of Phase Transitions and Dirac Revivals in Magic Angle Graphene
• Decoupling superconductivity and correlated insulators in twisted bilayer graphene
• Phonon scattering dominated electron transport in twisted bilayer graphene
• Nematicity and Competing Orders in Superconducting Magic-Angle Graphene
• Interfacial ferroelectricity in marginally twisted 2D semiconductors
• Chern Insulators and Topological Flat-bands in Magic-angle Twisted Bilayer Graphene
• Quantum Criticality in Twisted Transition Metal Dichalcogenides
• Electrostatic effects, band distortions and superconductivity in twisted graphene bilayers
• A metallic mosaic phase and the origin of Mott insulating state in 1T-TaS2
• Structure and Control of Charge Density Waves in Two-Dimensional 1T-TaS2
• Tuning electron correlation in magic-angle twisted bilayer graphene using Coulomb screening
• Nanoscale manipulation of the Mott insulating state coupled to charge order in 1T-TaS2
• Visualizing Exotic Orbital Texture in the Single-Layer Mott Insulator 1T-TaSe2
• Entropic evidence for a Pomeranchuk effect in magic angle graphene
• Pressure dependence of the magic twist angle in graphene superlattices
• Stacking domains and dislocation networks in marginally twisted bilayers of transition metal dichalcogenides
• Relaxation of moiré patterns for slightly misaligned identical lattices: graphene on graphite
• Imaging orbital ferromagnetism in a moiré Chern insulator
• A quantum phase transition from triangular to stripe charge order in NbSe${}_2$
• Unique gap structure and symmetry of the charge density wave in single-layer VSe${}_2$
• Moiré Excitons Correlated with Superlattice Structure in Twisted WSe${}_2$/WSe${}_2$ Homobilayers
• Competing zero-field Chern insulators in Superconducting Twisted Bilayer Graphene
• Twist engineering of the two-dimensional magnetism in double bilayer chromium triiodide homostructures
• Emergence of charge density waves and a pseudogap in single-layer TiTe2
• Stacking Domain Wall Magnons in Twisted van der Waals Magnets
• Atomic-Scale Strain Manipulation of a Charge Density Wave
• Evidence of charge density wave with anisotropic gap in monolayer VTe${}_2$ film
• Strain Engineering a $4a\times \sqrt{3}a$ Charge Density Wave Phase in Transition Metal Dichalcogenide 1T-VSe${}_2$
• Tuning band gaps in twisted bilayer MoS${}_2$
• Reconstruction of moiré lattices in twisted transition metal dichalcogenide bilayers
• A scalable network model for electrically tunable ferroelectric domain structure in twistronic bilayers of two-dimensional semiconductors
• Scanning tunneling spectroscopy of layers of superconducting 2H-TaSe${}_{\text{2}}$: Evidence for a zero bias anomaly in single layers
• Zoology of domain walls in quasi-2D correlated charge density wave of 1T-TaS2
• Critical role of device geometry for the phase diagram of twisted bilayer graphene
• Charge-density-wave states in double-layer graphene structures in a high magnetic field

Cited by in corpus (3)

• Moiré Superstructures in Marginally-Twisted NbSe${}_2$ Bilayers
• Stacking of charge-density waves in 2H-NbSe${}_2$ bilayers
• Magnetic Ordering in Moiré Graphene Multilayers from a Continuum Hartree+U Approach