Fig. 2: Pressure dependence of the U M4,5 white lines.
From: Investigating the electronic states of UTe2 using X-ray spectroscopy

Shape of the M5 (full lines) and M4 white lines for some selected pressures at 2.7 K. The inset shows the enlarged part of the top of the M5 white line. E0, the energy of the maximum of the M5 white line at 0.75 GPa, was set to zero.