Extended Data Fig. 5: Magneto-reflectance spectra and Zeeman shifts of the excitons at the Mott insulator state.
From: Excitonic insulator in a heterojunction moiré superlattice
(a) and (b) are helicity-resolved magneto-reflectance spectra of 1L/2L WS2/WSe2 region of device D2 as a function of doping for the negative electric field -69 mV/nm, under an out-of-plane magnetic field of 4T. At n = −1, in contrast to Fig. 4, exciton resonance XIV, is evidently A exciton like. (c) Zeeman shift of XIV of device D3 at the Mott insulator state (reflectance spectra in Supplementary Fig. 6).
