Fig. 4: Loss of valley polarization at high intensity and high temperature (300 K). | Nature Communications

Fig. 4: Loss of valley polarization at high intensity and high temperature (300 K).

From: A holistic view of the dynamics of long-lived valley polarized dark excitonic states in monolayer WS2

Fig. 4

a Photoemission signal from the exciton-bound electrons at low intensity and low temperature at 1 ps. A 120° rotating average was performed to symmetrize the matrix element as in Fig. 1c. b Corresponding electron (blue) and hole (red) distributions. c Photoemission signal from the exciton bound electrons at high intensity at 1 ps d Corresponding electron (blue) and hole (red) distributions e Room temperature ARPES data at 1 ps and low intensity. f Room temperature and low intensity electron (blue) and hole (red) distributions.

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