Local-field effects on photoemission of C-60

Sammanfattning

The surface core-level shift in C 1s soft x-ray photoemission spectroscopy has been experimentally observed in films of C-60 on Al. A value of 0.100+/-0.025 eV has been determined. Theoretical calculations are presented which show that the core hole is uniformly screened by the C-60 molecule, and that the effect of the surface upon this intramolecular screening should be negligible. The observed SCLS can therefore be accounted for by the difference in final state (core hole + polarized near-neighbor molecules) between bulk and near-surface atoms, as calculated by a straightforward, real-space, local-field calculation.

Publicerad i

Physical review. B.
1996, volym: 54, nummer: 8, sidor: R5279-R5282
Utgivare: AMER PHYSICAL SOC

SLU författare

• Enkvist, Christer

  • Uppsala universitet

UKÄ forskningsämne

Teoretisk kemi

Publikationens identifierare

• DOI: https://doi.org/10.1103/PhysRevB.54.R5279

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/129208