Ayshi Mukherjee

Abstract Two-dimensional materials are a fertile ground for exploring quantum geometric phenomena, with Berry curvature and its first moment, the Berry curvature dipole, playing a central role in their electronic response. These geometric properties influence electronic transport and result in the anomalous and nonlinear Hall effects, and are typically controlled using static electric fields or strain.

Abstract The microscopic mechanism of unconventional superconductivity in magic-angle twisted trilayer graphene is poorly understood. We show direct evidence for an in-plane magnetic order competing with the superconducting state motivated by theoretical proposals. We use two complementary electrical transport measurements.

1 Introduction Twistronics has emerged as a burgeoning field to engineer symmetry-broken flat bands that can be tuned electrically and via other knobs.[1] For example, magic-angle twisted bilayer graphene hosts a plethora of tunable correlated phases such as superconductivity[2, 3] and orbital ferromagnetism.[4, 5] Recent advances in the field have drawn specific connections between electronic correlations in flat-band systems and the underlying band topology.