Abstract
The dispersion of certain graphite conduction bands, lying up to 22 eV above the Fermi level, has been determined from secondary electron features appearing in synchrotron radiation excited angle-resolved photoemission data obtained for a single crystal of natural graphite. Such high energy conduction bands have not been observed with inverse photoemission. In addition, constant-final-state photoemission spectroscopy has been used to determine the position of the interlayer state in graphite. The results highlight discrepancies between photoemission and secondary electron emission and inverse photoemission over the position of low energy conduction bands in graphite.
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