again we see that the shallow [$d_{xy}$]{} band is present at low temperatures, and its spectral weight diminishes with raised temperature. Similar quantitatively analysis is also done on the RFS. Fig. \[fig:figsi2\](g) shows the EDC at X point taken in the geometry of Fig. \[fig:figsi2\](d)-(f), taken from 10K to 200K. Similar to the case of KFS, the $\sim$-0.05eV hump shaded by blue is the [$d_{xy}$]{} band bottom, whose spectral weight diminishes with raised temperature. The EDCs are again fitted with a Gaussian background and a Lorentzian peak, whose integrated intensity as a function of temperature is plotted in Fig. S2h. The method of integrating intensity in boxed regions is also done on RFS. Here two regions were chosen (Fig. \[fig:figsi2\]d): blue box for a region dominated by [$d_{xy}$]{} band, and magenta box for a region of mixed [$d_{xy}$]{} and [$d_{xz}$]{}. The background for each region is taken as a box of same energy window away from dispersions, marked by dotted boxes in Fig. \[fig:figsi2\](d). The integrated intensity of these two regions as a function of temperature is plotted in Fig. \[fig:figsi2\](i), showing the diminishing trend of [$d_{xy}$]{}region and the slower trend of the mixed region. These behaviors in RFS are 