Unfolding appearance potential spectra

✍ Scribed by C Webb

• Book ID: 104264302
• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 660 KB
• Volume: 27
• Category: Article
• ISSN: 0042-207X
• DOI: 10.1016/s0042-207x(77)80421-1

✦ Synopsis

The Soft X-ray Appearance Potential Spectra of a number of layer materials have been found to be in excellent agreement with the predictions of a conduction band self convolution model. Crystal field splitting of d orbitals in octahedrally co-ordinated transition metal dichalcogenides gives rise to strong effects in AP spectra which are consistent with a self convolution interpretation. A similar argument is successfully applied to the remarkable graphite spectrum, a detailed analysis of which correlates well with secondary electron emission data and also Photon Appearance Potential Spectroscopy. The deduced form of the conduction band d.o.s, is in qualitative accord with Painter and Ellis's band calculations.