Signatures of time-reversal symmetry-breaking superconductivity in the moiré Chern band of twisted MoTe₂

Two-dimensional moiré systems provide an exceptional platform for exploring emergent quantum phenomena arising from the interplay between electronic correlations and non-trivial band topology. A notable example is the recent realization of fractional quantum anomalous Hall (FQAH) effects in twisted bilayer MoTe2. Here we present the electrical transport study on high-quality 3.83-degree twisted bilayer MoTe2. Remarkably, we observed unconventional superconductivity emerging adjacent to both the FQAH and reentrant QAH states. The superconducting state shows signatures of broken time-reversal symmetry, evidenced by magnetic hysteresis and an anomalous Hall effect in its normal state. Our results demonstrate the first realization of superconductivity coexisting with FQAH effects within a single topological flat band. Our findings expand the understanding of emergent quantum phenomena in moiré Chern bands.