The understanding of electronic excitations of C60 on graphite

M. F. Luo, Z. Y. Li, W. Allison

Research output: Contribution to journalArticlepeer-review

Abstract

Electron energy loss spectroscopy has been used to probe the coverage-dependent electronic excitations from a C60 covered graphite surface. In the energy region corresponding to the optical band-gap of the bulk C60 solid, the dipole-scattering contribution to the loss features is simulated by a double dielectric layer model. We find that a good agreement between the simulated spectra and the experimental results can be achieved for a C60 multilayer. However, an additional energy loss channel is required in order to describe the electronic excitations for a C60 monolayer. The possible significances of this finding are discussed.

Original languageEnglish
Pages (from-to)6257-6265
Number of pages9
JournalJournal of Physics Condensed Matter
Volume16
Issue number34
DOIs
StatePublished - 1 Sep 2004

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