\[fig:fig2\] shows a temperature-dependent study of these bands taken in two polarization geometries. In Fig. \[fig:fig2\](a), the matrix element for [$d_{xy}$]{} is stronger than [$d_{xz}$]{}. At low temperatures, [$d_{xy}$]{} band is clearly resolved with weaker intensity for the [$d_{xz}$]{} band. With increasing temperature, the spectral weight of the [$d_{xy}$]{} band noticeably diminishes, eventually revealing the remaining [$d_{xz}$]{} band at high temperatures. In Fig. \[fig:fig2\](b), the deeper [$d_{yz}$]{} band has more intensity than the corresponding [$d_{xz}$]{} band in Fig. \[fig:fig2\](a) while the presence of the [$d_{xy}$]{} band is still very noticeable from the increased intensity where they significantly overlap, as well as from the energy distribution curves (EDCs) shown in Fig. \[fig:fig2\](c). With increasing temperature, again, the spectral weight of the [$d_{xy}$]{} band diminishes, leaving only the [$d_{yz}$]{} band at high temperatures, which clearly has a deeper band bottom than the shallow [$d_{xy}$]{} band (Fig. \[fig:fig2\](c)). In addition, we have artificially introduced a 210K thermal broadening to the 30K spectra as shown in the last column of Fig. \[fig:fig2\]. The clear contrast to the 210K data rules out a trivial thermal broadening as an origin for the observed diminishing of [$d_{xy}$]{} spectral weight.

![image](Fig3){width="95.00000%"}

To capture this behavior quantitatively, we analyze 