The π-electronic excitations in graphite layers are studied within the self-consistent-field approach. The π plasmon behaves as an optical plasmon, mainly due to the π-band characteristics. The excitation spectra and the π-plasmon frequencies are obviously enhanced by the interlayer Coulomb interactions and increase with the number of graphite layers.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Materials Chemistry