Spectroscopic signatures of many-body correlations in magic-angle twisted bilayer graphene
The discovery of superconducting and insulating states in magic-angle twisted bilayer
graphene (MATBG), has ignited considerable interest in understanding the nature of …
graphene (MATBG), has ignited considerable interest in understanding the nature of …
Signatures of tunable superconductivity in a trilayer graphene moiré superlattice
Understanding the mechanism of high-transition-temperature (high-T c) superconductivity is
a central problem in condensed matter physics. It is often speculated that high-T c …
a central problem in condensed matter physics. It is often speculated that high-T c …
Switching 2D magnetic states via pressure tuning of layer stacking
The physical properties of two-dimensional van der Waals crystals can be sensitive to
interlayer coupling. For two-dimensional magnets,–, theory suggests that interlayer …
interlayer coupling. For two-dimensional magnets,–, theory suggests that interlayer …
[HTML][HTML] Theory of correlated insulating behaviour and spin-triplet superconductivity in twisted double bilayer graphene
Two graphene monolayers twisted by a small magic angle exhibit nearly flat bands, leading
to correlated electronic states. Here we study a related but different system with reduced …
to correlated electronic states. Here we study a related but different system with reduced …
Twisted bilayer graphene aligned with hexagonal boron nitride: Anomalous Hall effect and a lattice model
A recent experiment reported a large anomalous Hall effect in magic angle twisted bilayer
graphene (TBG) aligned with a hexagonal boron nitride (h-BN) substrate at 3/4 filling of the …
graphene (TBG) aligned with a hexagonal boron nitride (h-BN) substrate at 3/4 filling of the …
Geometric and conventional contribution to the superfluid weight in twisted bilayer graphene
By tuning the angle between graphene layers to specific “magic angles” the lowest energy
bands of twisted bilayer graphene (TBLG) can be made flat. The flat nature of the bands …
bands of twisted bilayer graphene (TBLG) can be made flat. The flat nature of the bands …
Tunable crystal symmetry in graphene–boron nitride heterostructures with coexisting moiré superlattices
NR Finney, M Yankowitz, L Muraleetharan… - Nature …, 2019 - nature.com
In van der Waals (vdW) heterostructures consisting of atomically thin crystals layered on top
of one another, lattice mismatch and rotation between the layers can result in long …
of one another, lattice mismatch and rotation between the layers can result in long …
Electronic band structure and pinning of Fermi energy to Van Hove singularities in twisted bilayer graphene: A self-consistent approach
The emergence of flat bands in twisted bilayer graphene leads to an enhancement of
interaction effects, and thus to insulating and superconducting phases at low temperatures …
interaction effects, and thus to insulating and superconducting phases at low temperatures …
Valley Jahn-Teller effect in twisted bilayer graphene
The surprising insulating and superconducting states of narrow-band graphene twisted
bilayers have been mostly discussed so far in terms of strong electron correlation, with little …
bilayers have been mostly discussed so far in terms of strong electron correlation, with little …
Charge smoothening and band flattening due to Hartree corrections in twisted bilayer graphene
Doping twisted bilayer graphene away from charge neutrality leads to an enormous buildup
of charge inhomogeneities within each moiré unit cell. Here, we show, using unbiased real …
of charge inhomogeneities within each moiré unit cell. Here, we show, using unbiased real …