Extended Data Fig. 3: Temperature calibration.
From: Coherent control of a surface structural phase transition
a, Temperature-dependent integrated intensities of (4 × 1) (top) and (8 × 2) (bottom) diffraction spots across the phase transition (Tc ≈ 125 K). b, Integrated diffraction spot intensities for ∆tp–el < 0 in Fig. 1c as a function of incident fluence. c, Temperature calibration: a Debye–Waller model is fitted to the diffraction spot intensities in a for temperatures in the range 60 K < T < 100 K. Comparing the suppressions in b and c, we find a maximum temperature increase ∆Tb ≈ 22 K for the highest fluence value (Fmax ≈ 1.35 mJ cm2) within our measurement range. Note that the resulting base temperature Tb = 82 K is well below the Tc.
