Article ID Journal Published Year Pages File Type
5395944 Journal of Electron Spectroscopy and Related Phenomena 2013 6 Pages PDF
Abstract
The strange shape of experimental TEY XANES spectra from GaxIn1−xP measured at the phosphorus L2,3 edges as a function of photon glancing angle of incidence is explained by taking into account, for the first time, the energy dependence of the non-resonant photoelectron background arising from modulation of the X-ray radiation field by mirror reflection from the sample surface. The adjustment of the relative contribution of the resonant and nonresonant absorption to the TEY signal as well as the optical parameters of the sample allows us to fit the experimental data reasonably well. We perform the detailed analysis of the resonant white line shape in TEY XANES spectrum at different photon glancing angles depending on the optical parameters of the sample and the relative amount of the nonresonant contribution.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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