Data and code for "Energy and momentum relaxation through the Curie temperature in an itinerant ferromagnet"

Data and analysis code supporting R. Bhandia et al., "Energy and momentum relaxation through the Curie temperature in an itinerant ferromagnet," Physical Review Letters (2026). The record contains time-domain THz transmission and nonlinear THz pump–THz probe measurements on a 35.6 nm compressively strained Ca2RuO4 thin film on LaSrAlO4 (001), together with DC resistivity. It includes the raw data used in the paper, processed results, the MATLAB code that produces every figure in the Letter and its Supplemental Material, and CSV files of the plotted values for each figure. See README.md for the file layout, data formats, and instructions for reproducing the figures.