Superconductivity, superfluidity and quantum geometry in twisted multilayer systems
Superconductivity has been observed in moiré systems such as twisted bilayer graphene,
which host flat, dispersionless electronic bands. In parallel, theory work has discovered that …
which host flat, dispersionless electronic bands. In parallel, theory work has discovered that …
Graphene bilayers with a twist
Near a magic twist angle, bilayer graphene transforms from a weakly correlated Fermi liquid
to a strongly correlated two-dimensional electron system with properties that are …
to a strongly correlated two-dimensional electron system with properties that are …
Magic-angle twisted bilayer graphene as a topological heavy fermion problem
Magic-angle (θ= 1.0 5°) twisted bilayer graphene (MATBG) has shown two seemingly
contradictory characters: the localization and quantum-dot-like behavior in STM …
contradictory characters: the localization and quantum-dot-like behavior in STM …
Superconductivity and strong correlations in moiré flat bands
Strongly correlated systems can give rise to spectacular phenomenology, from high-
temperature superconductivity to the emergence of states of matter characterized by long …
temperature superconductivity to the emergence of states of matter characterized by long …
Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene
When two sheets of graphene are stacked at a small twist angle, the resulting flat
superlattice minibands are expected to strongly enhance electron-electron interactions …
superlattice minibands are expected to strongly enhance electron-electron interactions …
Tuning superconductivity in twisted bilayer graphene
Materials with flat electronic bands often exhibit exotic quantum phenomena owing to strong
correlations. An isolated low-energy flat band can be induced in bilayer graphene by simply …
correlations. An isolated low-energy flat band can be induced in bilayer graphene by simply …
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 …
Tunable spin-polarized correlated states in twisted double bilayer graphene
Reducing the energy bandwidth of electrons in a lattice below the long-range Coulomb
interaction energy promotes correlation effects. Moiré superlattices—which are created by …
interaction energy promotes correlation effects. Moiré superlattices—which are created by …
Electronic correlations in twisted bilayer graphene near the magic angle
Twisted bilayer graphene with a twist angle of around 1.1° features a pair of isolated flat
electronic bands and forms a platform for investigating strongly correlated electrons. Here …
electronic bands and forms a platform for investigating strongly correlated electrons. Here …
Electronic-structure methods for twisted moiré layers
When single layers of 2D materials are stacked on top of one another with a small twist in
orientation, the resulting structure often involves incommensurate moiré patterns. In these …
orientation, the resulting structure often involves incommensurate moiré patterns. In these …