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Current-phase relation of ballistic graphene Josephson junctions
Gaurav Nanda, Juan Luis Aguilera-Servin, Péter Rakyta +7
The current-phase relation (CPR) of a Josephson junction (JJ) determines how the supercurrent evolves with the superconducting phase difference across the junction. Knowledge of th…
Edge currents shunt the insulating bulk in gapped graphene
M. J. Zhu, A. V. Kretinin, M. D. Thompson +13
An energy gap can be opened in the electronic spectrum of graphene by lifting its sublattice symmetry. In bilayers, it is possible to open gaps as large as 0.2 eV. However, these g…
Robust fractional quantum Hall states and continuous quantum phase transitions in a half-filled bilayer graphene Landau level
Alexander A. Zibrov, Carlos. R. Kometter, Haoxin Zhou +5
Nonabelian anyons offer the prospect of storing quantum information in a topological qubit protected from decoherence, with the degree of protection determined by the energy gap se…
Signatures of phonon and defect-assisted tunneling in planar metal-hexagonal boron nitride-graphene junctions
U. Chandni, K. Watanabe, T. Taniguchi +1
Electron tunneling spectroscopy measurements on van der Waals heterostructures consisting of metal and graphene (or graphite) electrodes separated by atomically thin hexagonal boro…
Excitonic superfluid phase in Double Bilayer Graphene
J. I. A. Li, T. Taniguchi, K. Watanabe +2
Spatially indirect excitons can be created when an electron and a hole, confined to separate layers of a double quantum well system, bind to form a composite Boson. Because there i…
Superlattice-induced insulating states and valley-protected orbits in twisted bilayer graphene
Y. Cao, J. Y. Luo, V. Fatemi +6
Twisted bilayer graphene (TwBLG) is one of the simplest van der Waals heterostructures, yet it yields a complex electronic system with intricate interplay between moiré physics and…