Table 1 Fit parameters of the XPS analysis corresponding to the \(\hbox{Au}\,\hbox{4f}\) core-level signal in Figure 1(d).
Structural phase | \(\Theta\) (\(^{\circ }\)) | Component | \(E_{\text {bin}}\) (\(\hbox {eV}\)) | \(E_{\text {SOC}}\) (\(\hbox {eV}\)) | FWHM (\(\hbox {eV}\)) | asymmetry \(\beta\) | rel. area (\(\%\)) |
|---|---|---|---|---|---|---|---|
clean \(\hbox{Au}\) subfigure 1(d) | 0 | bulk | 84.01 | 3.67 | 0.53 | 0.03 | 64.83 |
surface | 83.70 | 3.67 | 0.53 | 0.03 | 35.17 | ||
60 | bulk | 84.00 | 3.67 | 0.53 | 0.03 | 53.90 | |
surface | 83.69 | 3.67 | 0.53 | 0.03 | 46.10 |
