Table 1.
Summary of pertinent results for the fifteen solids studied.
| Solid | Reference core levels | Ref. core level binding energy a (eV) | FWHM of core levels b (eV) | FWHM of d-band peak (eV) | Separation of 2 components in d-band peak (eV) |
|---|---|---|---|---|---|
| Fe | 3p1/2–3/2 (unresolved) c | 52 | 2.3 | 4.2 | |
| Co | 3p1/2–3/2 (unresolved) c | 57 | 2.5 | 4.0 | |
| Ni | 3p1/2–3/2 (unresolved) c | 66 | 3.4 | 3.0 | |
| Cu | 3p1/2–3/2 (unresolved) c | 75 | 4.2 | 3.0 | |
| ZnS | 3p1/2–3/2 (unresolved) c | 90 | 5.4 | 1.7 | |
| Ru | 3d3/2–5/2 | 280 | 1.1 | 4.9 | |
| Rh | 3d3/2–5/2 | 307 | 1.3 | 4.4 | |
| Pd | 3d3/2–5/2 | 335 | 1.3 | 4.1 | |
| Ag | 3d3/2–5/2 | 368 | 1.0 | 3.5 | 1.5–1.8 |
| CdCl2 | 3d3/2–5/2 | 408 | 1.2 | 2.0 | |
| Os | 4f5/2–7/2 | 50 | 1.3 | 6.5 | |
| Ir | 4f5/2–7/2 | 60 | 1.4 | 6.3 | 3.3 |
| Pt | 4f5/2–7/2 | 71 | 1.5 | 5.8 | 3.3 |
| Au | 4f5/2–7/2 | 84 | 1.2 | 5.7 | 3.1 |
| HgO | 4f5/2–7/2 | 103 | 1.5 | 3.8 | 1.8 |
The reference core levels used for inelastic scattering correction are listed, along with their binding energies and widths. The widths of the d-band peaks are also given, along with the spacing of the two components in these peaks (if observed).
a
Binding energy of the l + 1/2 component, relative to the Fermi energy.
b
Equal widths assumed for both components in the least-squares fits for 3d and 4f levels.
c
The theoretical spin-orbit splitting for the 3p levels in this series range from 1.6 eV for Fe to 3.1 eV for Zn (Ref. 36). The partially resolved doublet in ZnS is found to have a separation of 2.8 eV, in good agreement.