Science Advances

Supplementary Materials

This PDF file includes:

  • note S1. Bragg and SL intensity dynamics up to 55-ps delay
  • note S2. Fluence dependence of τellong
  • note S3. MeV-UED measurements with 4.65-eV pump
  • note S4. Validity of single inelastic scattering for the TDS analysis
  • note S5. TDS dynamics along symmetrical points of a Brillouin zone
  • fig. S1. Lattice dynamics at large delays.
  • fig. S2. Values of long time constants τellong extracted from the tr-ARPES as function of laser fluence.
  • fig. S3. Lattice dynamics after 4.65-eV photon excitation.
  • fig. S4. Evolution of the TDS at Y points of the tetragonal Brillouin zone for 30 K (red circles) and 300 K (blue circles) and the exponential growth fits of the data (solid lines).

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