Anomalous Cyclotron Motion in Graphene Superlattice Cavities
arXiv:2006.14995 · doi:10.1103/PhysRevLett.125.217701
Abstract
We consider graphene superlattice miniband fermions probed by electronic interferometry in magneto-transport experiments. By decoding the observed Fabry-Pérot interference patterns together with our corresponding quantum transport simulations, we find that the Dirac quasiparticles originating from the superlattice minibands do not undergo conventional cyclotron motion but follow more subtle trajectories. In particular, dynamics at low magnetic fields is characterized by peculiar, straight trajectory segments. Our results provide new insights into superlattice miniband fermions and open up novel possibilities to use periodic potentials in electron optics experiments.
References in corpus (37)
- Magic-angle graphene superlattices: a new platform for unconventional superconductivity
- Correlated Insulator Behaviour at Half-Filling in Magic Angle Graphene Superlattices
- Suspended Graphene: a bridge to the Dirac point
- Hofstadter's butterfly in moire superlattices: A fractal quantum Hall effect
- Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene
- Massive Dirac fermions and Hofstadter butterfly in a van der Waals heterostructure
- Superconductors, Orbital Magnets, and Correlated States in Magic Angle Bilayer Graphene
- Cloning of Dirac fermions in graphene superlattices
- Quantum interference and Klein tunneling in graphene heterojunctions
- Emergence of Superlattice Dirac Points in Graphene on Hexagonal Boron Nitride
- Anisotropic behaviors of massless Dirac fermions in graphene under periodic potential
- Correlated states in twisted double bilayer graphene
- New Generation of Massless Dirac Fermions in Graphene under External Periodic Potentials
- Klein Backscattering and Fabry-Perot Interference in Graphene Heterojunctions
- Extra Dirac points in the energy spectrum for superlattices on single-layer graphene
- Electronic properties of graphene hexagonal boron nitride moiré superlattice
- Band Structure Engineering of 2D Materials using Patterned Dielectric Superlattices
- Ballistic miniband conduction in a graphene superlattice
- High-temperature quantum oscillations caused by recurring Bloch states in graphene superlattices
- Imaging mesoscopic spin Hall flow: Spatial distribution of local spin currents and spin densities in and out of multiterminal spin-orbit coupled semiconductor nanostructures
- Snake Trajectories in Ultraclean Graphene p-n Junctions
- Scalable Tight-Binding Model for Graphene
- Fabry-Pérot interference in gapped bilayer graphene with broken anti-Klein tunneling
- Shot Noise with Interaction Effects in Single Walled Carbon Nanotubes
- Moire superlattice effects in graphene/boron-nitride van der Waals heterostructures
- Creating and Steering Highly Directional Electron Beams in Graphene
- Tuning anti-Klein to Klein tunneling in bilayer graphene
- Quantum and classical confinement of resonant states in a trilayer graphene Fabry-Perot interferometer
- Gate-tunable two-dimensional superlattices in graphene
- Fabry-Pérot resonances in a graphene/hBN Moiré superlattice
- Commensurability Oscillations in One-Dimensional Graphene Superlattices
- Emergence of Tertiary Dirac Points in Graphene Moiré Superlattices
- Valley switch in a graphene superlattice due to pseudo-Andreev reflection
- Signatures of van Hove singularities probed by the supercurrent in a graphene - hBN superlattice
- Electrostatic Superlattices on Scaled Graphene Lattices
- Tailoring supercurrent confinement in graphene bilayer weak links
- Andreev reflection in ballistic normal metal/graphene/superconductor junctions
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- Dirac fermion optics and directed emission from single- and bilayer graphene cavities
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- Gate-tunable regular and chaotic electron dynamics in ballistic bilayer graphene cavities
- Probing miniband structure and Hofstadter butterfly in gated graphene superlattices via magnetotransport
- Complex Supersymmetry in Graphene
- Characterization of a graphene-hBN superlattice field effect transistor
- Energy distribution controlled ballistic Josephson junction
- Fabry-Perot and Aharonov-Bohm interference in ideal graphene nanoribbons