Abstract:One of the outstanding questions in the study of twisted bilayer graphene -from both experimental and theoretical points of view -is the nature of its superconducting phase. In this work we perform a comprehensive synthesis of existing experiments, and argue that experimental constraints are strong enough to allow the structure of the superconducting order parameter to be nearly uniquely determined. In particular, we argue that the order parameter is nodal, and is formed from an admixture of spin-singlet and s… Show more
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