Reflectivity-based refractive index measurement of van der Waals materials. HfS$_2$ data

This data set includes two different sets of data associated to the manuscript entitled "Reflectivity-based refractive index measurement of van der Waals materials": The file HfS2_RI_reflectivityMethod.csv contains a summary table with all the data points used to produce Fig.4 of the manuscript. The file Reflectivity_curves.csv contains all the reflectivity curves shown in Fig.2 of the manuscript.