Abstract
The spectral momentum density of the valence band of an amorphous carbon film has been measured by (, ) spectroscopy. Two "bands," energy as a function of momentum, are resolved. One extends from 23 eV below the Fermi energy to about 10 eV below . The other, ∼ 9 eV below , does not disperse significantly. Although the existence of diamond bonding in the film cannot be ruled out, the bands are more suggestive of the graphite band structure.
- Received 12 September 1984
DOI:https://doi.org/10.1103/PhysRevLett.53.2054
©1984 American Physical Society