We report the first direct probe of spin-valley excitations and nonequilibrium dynamics of a quantum anomalous Hall insulator in twisted MoTe2 moiré superlattices. Using pump probe …
Elementary excitations in quantum systems govern their responses to intrinsic and extrinsic stimuli, such as phase stabilities and device operations. Emergent collective …
We describe an optical technique that sensitively and selectively detects flavor textures via the exciton response of a proximal transition metal dichalcogenide layer (WSe2). …
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We demonstrate exciton-filling and magnetic field tunable exciton valley-pseudospin orders in a doped correlated insulator of excitons. We find evidence of an in-plane order of …
We observed a bosonic correlated insulator in WSe2/WS2 moiré superlattices composed of excitons, tightly bound electron-hole pairs. In our experiment, we built a novel optical …