Specific Process Knowledge/Characterization/XPS/Processing/ALDSandwich1/3scanned: Difference between revisions
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First, let us find some reasonable parameters for the Ti2p metallic peak. For that purpose, we analyse an old data set acquired on pure Ti. | First, let us find some reasonable parameters for the Ti2p metallic peak. For that purpose, we analyse an old data set acquired on pure Ti. | ||
[[File:Ti 2p highres 1.jpg|700px]] | [[File:Ti 2p highres 1.jpg|700px]] | ||
In the red square it is seen that the constraints on some of the peak parameters are changed compared to the fittings of the Al2p and Hf4f peaks: | |||
* The FWHM are no longer required to be equal. This will open up for the broadening of the Ti2p<sub>1/2</sub> peak. In the previous fittings, the correct ratio between the two peaks in the the spin-orbit couples was maintained by the requirements that the FWHM were identical and the Height CPS had a ratio of 0.515 (hence the area ratio would be correct). This constraint is gone now. However, with the addition of the asymmetry parameters (see below), the area requirement would be difficult to maintain anyway. | |||