▎ 摘　　要

Near a magic twist angle, the lowest energy conduction and valence bands of bilayer graphene moire superlattices become extremely narrow. The band dispersion that remains is sensitive to the moire's strain pattern, nonlocal tunneling between layers, and filling-factor-dependent Hartree and exchange band renormalizations. In this Letter, we analyze the influence of these band-structure details on the pattern of flavor symmetry breaking observed in this narrow band system and on the associated pattern of Fermi surface reconstructions revealed by weak-field Hall and Shubnikov-de Haas magnetotransport measurements.