The quantum Hall (QH) effect, quantized Hall resistance combined with zero longitudinal
resistance, is the characteristic experimental fingerprint of Chern insulators—topologically …

Strongly correlated systems can give rise to spectacular phenomenology, from high-
temperature superconductivity to the emergence of states of matter characterized by long …

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 …

In condensed-matter systems, higher temperatures typically disfavour ordered phases,
leading to an upper critical temperature for magnetism, superconductivity and other …

Motivated by the recently observed insulating states in twisted bilayer graphene, we study
the nature of the correlated insulating phases of the twisted bilayer graphene at …

Magnetism typically arises from the joint effect of Fermi statistics and repulsive Coulomb
interactions, which favours ground states with non-zero electron spin. As a result, controlling …

Stripe phases, in which the rotational symmetry of charge density is spontaneously broken,
occur in many strongly correlated systems with competing interactions,,,,,,,,,–. However …

In the 1950s, Pomeranchuk predicted that, counterintuitively, liquid 3He may solidify on
heating. This effect arises owing to high excess nuclear spin entropy in the solid phase …

We derive the exact insulator ground states of the projected Hamiltonian of magic-angle
twisted bilayer graphene (TBG) flat bands with Coulomb interactions in various limits, and …

Electrons in moiré flat band systems can spontaneously break time-reversal symmetry,
giving rise to a quantized anomalous Hall effect. In this study, we use a superconducting …