Zhengguang Lu

Stacking two atomically flat, layered materials with different scales of lattice periodicity produces a moiré superlattice—a lattice that repeats over potentially longer scales than the underlying atomic lattices of the constituent materials. In these superlattices, electron interactions can dominate over quantum confinement energies. This can lead to unusual effects, such as insulating states that arise purely from correlations.

Abstract Chiral superconductors are unconventional superconducting states that break time reversal symmetry spontaneously and typically feature Cooper pairing at non-zero angular momentum. Such states may host Majorana fermions and provide an important platform for topological physics research and fault-tolerant quantum computing1–7. Despite intensive search and prolonged studies of several candidate systems8–26, chiral superconductivity has remained elusive so far.

Abstract Spin–orbit coupling (SOC) has played an important role in many topological and correlated electron materials. In graphene-based systems, SOC induced by a transition metal dichalcogenide at close proximity has been shown to drive topological states and strengthen superconductivity. However, in rhombohedral multilayer graphene, a robust platform for electron correlation and topology, superconductivity and the role of SOC remain largely unexplored.