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Graphite and diamond C-K Edge Spectra

Spectra for Carbon (C)

Line plots of the EELS Spectra of Graphite and Diamond (opens larger version)
The graphite EELS spectrum starts with a characteristic sharp peak at 284.5 eV from the 1s to pi* transition. The Diamond spectrum lacks this peak, and it’s onset is delayed by about 5 eV
By: David Muller

Note: The first peak in the graphite plot is due to absorption by π* states. The second peak in the graphite plot, which is the leading edge in the diamond plot, is due to absorption by the σ* states.

Recorded on a VG-501 at 0.7 eV energy resolution

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