Fig. 2: TRARPES results of Td-WTe₂ along \(\overline{\Gamma }\)-\(\overline{{\rm{W}}}\).

a ARPES difference intensity map derived from the TRARPES data at Δt = 120 fs and Δt = −1 ps shown in Fig. 1c. b Transient difference EDCs derived from the ARPES difference intensity map by momentum integration of the gray-shaded area in a. c, d PE intensity transients of the integration region marked by the black box in a before (red) and after (blue) background subtraction (Supplementary Note 3). Blue curves are offset and scaled by a factor of 2 for clarity. e Fourier amplitude spectrum of the intensity transient shown in d. Note the different scaling of the data.