A local compressibility study of magic-angle twisted bilayer graphene, Part 2*

Magic-angle twisted bilayer graphene (MATBG) hosts a rich variety of electronic states including correlated insulators, superconductors, and topological phases. The interplay between the isospin degeneracy and the electronic interactions in the system leads to a cascade of transitions between different ground states, as observed in recent tunneling spectroscopy and local compressibility measurements. In this talk, we will present local compressibility measurements which provide evidence for such transitions. We will also discuss their response to an applied magnetic field and other fine features in our experiments.