This Data Set contains all the measured data and the calculation of our model of the magnetic field dependence of thermal conductivity, as described in our manuscript, titled "Heat conduction in magnetic insulators via hybridization of acoustic phonons and spin-flip excitations".

The data is organized for each figure in the manuscript: Each figure has a corresponding directory in the zip file. The README provides a detailed description for each file.

Our manuscript is currently accepted to publish in Physical Review Research Letter and is available at the preprint server at https://arxiv.org/abs/2401.01407.