Giant Correlated Gap and Possible Room-Temperature Correlated States in Twisted Bilayer MoS2

Moir\'e superlattices have emerged as an exciting condensed-matter quantum simulator for exploring the exotic physics of strong electronic correlations. Notable progress has been witnessed, but such correlated states are achievable usually at low temperatures. Here, we report evidence of possible room-temperature correlated electronic states and layer-hybridized SU(4) model simulator in AB-stacked ${\mathrm{MoS}}_{2}$ homobilayer moir\'e superlattices. Correlated insulating states at moir\'e band filling factors $v=1$, 2, 3 are unambiguously established in twisted bilayer ${\mathrm{MoS}}_{2}$. Remarkably, the correlated electronic state at $v=1$ shows a giant correlated gap of $\ensuremath{\sim}126\text{ }\text{ }\mathrm{meV}$ and may persist up to a record-high critical temperature over 285 K. The realization of a possible room-temperature correlated state with a large correlated gap in twisted bilayer ${\mathrm{MoS}}_{2}$ can be understood as the cooperation effects of the stacking-specific atomic reconstruction and the resonantly enhanced interlayer hybridization, which largely amplify the moir\'e superlattice effects on electronic correlations. Furthermore, extreme large nonlinear Hall responses up to room temperature are uncovered near correlated electronic states, demonstrating the quantum geometry of moir\'e flat conduction band.