Nematic superconductivity and non-superconducting orders in twisted bilayer graphene
ABSTRACT
Twisted bilayer graphene displays insulating and superconducting phases caused by exceptional flattening of its lowest energy bands. In our work we discuss both superconducting and non-superconducting orders in twisted bilayer graphene (TBG). We study patch models, which are relevant near the Van Hove doping of TBG. We show that the presence of non-local interaction terms generates nematic superconductivity. The very same terms also lead to orbital ferromagnetism, which was discovered before in the strong-coupling calculations.
PRESENTER
Dmitry Chichinadze
University of Minnesota
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