@article{335,
  keywords = {paper},
  author = {Maurizia Palummo and Olivia Pulci and A Marini and Lucia Reining and Rodolfo Del Sole},
  title = {Ab initio calculation of many-body effects on the EEL spectrum of the C(100) surface},
  abstract = {We extend the three-layer model for energy loss calculation to include many-body effects in an ab initio framework. The electron energy loss spectrum of the C(100)2x1 surface is calculated and compared with the existing experimental results. We show how many-body effects, namely self-energy, local-fields, and electron-hole interaction, deeply influence the dielectric response and how their inclusion is essential to have good agreement with the experiment. A strong anisotropic behavior of local-field effects on the dielectric response has been observed, while the inclusion of the electron-hole attractive interaction produces a surface-state exciton with binding energy of about 1 eV, confirming a recent theoretical-experimental study of the optical spectra of this surface.},
  year = {2006},
  journal = {Phys. Rev. B},
  volume = {74},
  number = {23},
  month = {DEC},
  publisher = {AMERICAN PHYSICAL SOC},
  address = {ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA},
  url = {http://dx.doi.org/10.1103/PhysRevB.74.235431},
  doi = {10.1103/PhysRevB.74.235431},
}