![]() ![]() Table 2: Co 3s multiplet spin separations Cobalt (III) oxide, as with the 2p region, exhibit negligible multiplet splitting compared with Co (II) species. ![]() Note that the splitting may not always be strongly observable, for example in Co metal it is present as a shoulder and often recorded as no splitting. Spin-induced Co 3s multiplet splittings for some common species may be found in table 2. (7) Figure 4: Co 3s region indicating spin splitting Table 1: Typical biding energies for various common Co speciesĬobalt oxides reduced by Ar + sputtering, use low energy for profiling or cleaning.Ĭobalt 3s spectra, whilst relatively weak (and overlapping with some notable emissions such as Si 2p and Ce 4d) may also offer unique insights into the cobalt speciation since 3s region splitting (figure 4) of TMs may be sensitive to the metal spin state and ligand-metal charge transfer. He unique lineshapes do afford the possibility of fingerprint analysis however, either through utilising the theoretically derived fits of Biesinger (1) or using reference spectra of standard materials. ![]()
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