Superconductivity and strong electronic interactions in a moiré quasicrystal – part 2

We explore the moiré quasicrystal emerging from twisted trilayer graphene with two twist angles using magnetotransport. Using electrostatic gating we tune between separate regimes of dispersive band-like behavior and flat electronic dispersion, the latter hosting scattered electronic states and open Fermi surfaces, in good agreement with our spectral function calculations. We uncover both superconductivity and broken-symmetry states that may be related to similar phases in moiré periodic systems, but in the absence of periodicity, offering potential constraints on the order parameter symmetries. Our system establishes a new class of two-dimensional moiré quasicrystals that can be engineered using lattice twist angles, different materials, and electrostatic gates to tune the electronic properties.