Fig. 3: X-ray absorption: experimental results and theory calculation.
From: Ultrafast electron energy-dependent delocalization dynamics in germanium selenide
a XANES and the calculated x-ray absorption spectra of Ge K. b Calculated density of states with orbital contributions of Ge pz. c XANES and the calculated x-ray absorption spectra of Se K. d Calculated density of states with orbital contributions of Se pz. The open circles in a and c are experimental data, and the lines are the calculated data. In all the plots, we use a relative energy scale with respect to the Fermi energy EF. To ease the comparison with the experimental data (hollow circle line), the calculated XANES spectra (dotted line) were convolved with a Lorentzian profile, resulting in broadened spectra (solid line). The black dashed lines in b and d indicate the positions of maximum pz orbital contributions in the unoccupied states.
