Quantum Café: Angle-Resolved Transport In Rhombohedral Multilayer Graphene

In strongly correlated electron systems, Coulomb interactions often manifest through the spontaneous reduction of rotational symmetry in emergent electronic phases. Understanding how such symmetry breaking intertwines with other collective phenomena—and how it shapes experimental observables—remains a central focus of quantum materials research.

In this talk, I will discuss the emergence of broken rotational symmetry in rhombohedral hexalayer graphene, revealed through angle-resolved transport measurements that uncover pronounced transport anisotropy. Most intriguingly, this extreme anisotropy plays a decisive role in defining the nature of an unconventional superconducting phase that emerges at low temperature. Our findings shed new insight into how rotational symmetry breaking reshapes superconducting behavior in two-dimensional quantum materials—and challenging conventional paradigms of unconventional superconductivity.