Figure 2 | Scientific Reports

Figure 2

From: Concomitant singularities of Yb-valence and magnetism at a critical lattice parameter of icosahedral quasicrystals and approximants

Figure 2

PFY–XAS spectrum of Yb-based IV system. (a) Schematic energy diagram of a resonant x-ray emission process of IV Yb ions. \(\left. |g \right\rangle\), \(\left. |i \right\rangle\) and \(\left. |f \right\rangle\) denote the initial, intermediate and final state, respectively. (b) PFY spectra of \(\text{Au}_{49}\text{Ga}_{35}\text{Yb}_{16}\) QC. The green and orange curves denote the resonant component arising from the \(\text{Yb}^{2+}\) and \(\text{Yb}^{3+}\) configuration, respectively. The broken line denotes the background (fluorescence) component. The pink solid line indicates summation of the resonant and fluorescence components.

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