Figure 5: Valley Zeeman effect in monolayer MoS2.
From: Exciton diamagnetic shifts and valley Zeeman effects in monolayer WS2 and MoS2 to 65 Tesla
(a) Reflection spectrum of monolayer MoS2 at B=0 T and T=4 K. The A and B exciton resonances are labelled. (b,c) Normalized reflection spectra (1−R/R0) at the A and B exciton resonances at B=0, +65 and −65 T. (d) Energies of the field-split A exciton transition. (e) Same, but for the B exciton transition. (f) The measured valley splitting (E+−E−) versus the magnetic field, for both A and B excitons. (g) The average energy of the two valley-split resonances, (E++E−)/2, for both A and B excitons. Increased scatter in the data from this MoS2 sample precludes any clear identification of the diamagnetic shift.
