Observation of drastic electronic structure change in one-dimensional moiré crystals
arXiv:1906.09421 · doi:10.1103/PhysRevLett.124.106101
Abstract
We report the first experimental observation of strong coupling effect in one-dimensional moiré crystals. We study one-dimensional double-wall carbon nanotubes (DWCNTs) in which van der Waals-coupled two single nanotubes form one-dimensional moiré superlattice. We experimentally combine Rayleigh scattering spectroscopy and electron beam diffraction on the same individual DWCNTs to probe the optical transitions of structure-identified DWCNTs in the visible spectral range. Among more than 30 structure-identified DWCNTs examined, we experimentally observed and identified a drastic change of optical transition spectrum in DWCNT with chirality (12,11)@(17,16). The origin of the marked change is attributed to the strong intertube coupling effect in a moiré superlattice formed by two nearly-armchair nanotubes. Our numerical simulation is consistent to these experimental findings.
References in corpus (22)
- Van der Waals heterostructures
- 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
- Hofstadter's butterfly in moire superlattices: A fractal quantum Hall effect
- Massive Dirac fermions and Hofstadter butterfly in a van der Waals heterostructure
- Moiré Excitons in Van der Waals Heterostructures
- Cloning of Dirac fermions in graphene superlattices
- Signatures of moiré-trapped valley excitons in MoSe/WSe heterobilayers
- Observation of Moiré Excitons in WSe2/WS2 Heterostructure Superlattices
- Resonantly hybridised excitons in moiré superlattices in van der Waals heterostructures
- Moiré excitons: from programmable quantum emitter arrays to spin-orbit coupled artificial lattices
- Evidence of Gate-Tunable Mott Insulator in Trilayer Graphene-Boron Nitride Moiré Superlattice
- Origin of Mott insulating behavior and superconductivity in twisted bilayer graphene
- Maximally-localized Wannier orbitals and the extended Hubbard model for the twisted bilayer graphene
- Topological Exciton Bands in Moiré Heterojunctions
- Fractional quantum conductance in carbon nanotubes
- Direct Experimental Evidence of Exciton-Phonon Bound States in Carbon Nanotubes
- Electronic states and quantum transport in double-wall carbon nanotubes
- Electronic structure of polychiral carbon nanotubes
- Excitons and high-order optical transitions in individual carbon nanotubes
- Incommensurate double-walled carbon nanotubes as one-dimensional moiré crystals
Cited by in corpus (15)
- Nanotube-based one-dimensional heterostructures coupled by van der Waals forces
- One-dimensional van der Waals Heterostructures: Growth Mechanism and Handedness Correlation Revealed by Non-destructive TEM
- Topological Sliding Moiré Heterostructure
- One-dimensional moiré superlattices and flat bands in collapsed chiral carbon nanotubes
- High transmission in twisted bilayer graphene with angle disorder
- Moiré-induced Vibrational Coupling in Double Walled Carbon Nanotubes
- Band structure and inter-tube optical transitions in double-walled carbon nanotubes
- Angle-dependent electron confinement in graphene moiré superlattices
- Universality of moiré physics in collapsed chiral carbon nanotubes
- Theoretical evidence of a significant modification of the electronic structure of double-walled carbon nanotubes due to the interlayer interaction
- Reentrant topological phases and spin density wave induced by 1D moiré potentials
- Reentrant topological phases and entanglement scalings in moiré-modulated extended Su-Schrieffer-Heeger Model
- Tight binding approximation for bilayer graphene and nanotube structures: from commensurability to incommensurability between the layers
- Emergent electronic insulating states in a one-dimensional moiré superlattice
- One-dimensional moiré engineering in zigzag graphene nanoribbons on hBN