Table 2 XPS analysis fit parameters to the chemical evolution of the \(\hbox{Sn}\,\hbox{4d}\) signal shown in Figure 4. In order to simplify the reading and the table layout, the \((\sqrt{3}\times \sqrt{3})\text {R}{30}^{\circ }\)-table entry was simplified to \(\sqrt{3}\).
Structural phase | \(\Theta\) (\(^{\circ}\)) | Component | \(E_{\text {bin}}\) (\(\hbox {eV}\)) | \(E_{\text {SOC}}\) (\(\hbox {eV}\)) | FWHM (\(\hbox {eV}\)) | asymmetry \(\beta\) | rel. area (\({\%}\)) |
|---|---|---|---|---|---|---|---|
\((2\times 2)\) phase figure 4(a) | 0 | \((2\times 2)\) | 24.03 | 1.03 | 0.47 | 0.12 | 100.00 |
60 | \((2\times 2)\) | 24.04 | 1.03 | 0.47 | 0.12 | 100.00 | |
mixed phase figure 4(b) | 0 | \(\sqrt{3}\) | 24.19 | 1.03 | 0.48 | 0.12 | 68.03 |
\((2\times 2)\) | 24.03 | 1.03 | 0.48 | 0.12 | 31.97 | ||
60 | \(\sqrt{3}\) | 24.19 | 1.04 | 0.48 | 0.12 | 65.78 | |
\((2\times 2)\) | 24.03 | 1.04 | 0.48 | 0.12 | 34.22 | ||
\(\hbox {Au}_{2}\hbox {Sn}\)-alloy figure 4(c) | 0 | \(\sqrt{3}\) | 24.20 | 1.03 | 0.47 | 0.12 | 100.00 |
60 | \(\sqrt{3}\) | 24.19 | 1.03 | 0.47 | 0.12 | 100.00 |
