Chern bands of twisted bilayer graphene: Fractional Chern insulators and spin phase transition
Cécile Repellin, T. Senthil
Abstract
The authors show that a fractional Chern insulator can be realized in twister bilayer graphene at certain densities and temperatures. Also, the paper uncovers a spin order which reveals an interplay between the single-particle properties of Chern bands and the spin order of fractional Chern insulators.
Topics & Concepts
Bilayer grapheneCondensed matter physicsChern classInsulator (electricity)Spin (aerodynamics)Phase transitionBilayerPhysicsGrapheneMaterials scienceQuantum mechanicsChemistryMathematicsMembranePure mathematicsComposite materialBiochemistryThermodynamicsQuantum and electron transport phenomenaGraphene research and applicationsTopological Materials and Phenomena