Evidence for intercalation in
Department of Physics, Göteborg University and
Chalmers University of Technology SE-412 96 Göteborg, Sweden
2 Department of Computer Science, Karlstad University - SE-651 88 Karlstad, Sweden
Accepted: 9 October 2003
The electronic structure of the layered compound 1T-, before and after deposition of , was studied by angle-resolved photoelectron spectroscopy. 4p core-level spectra were found to consist of two spin-orbit doublets, of which one could be unambiguously attributed to intercalated . Valence band spectra, which were compared with band structure calculations, provided further support that was intercalated, in conflict with recent claims. Possible explanations of the conflicting results are discussed.
PACS: 79.60.Bm – Clean metal, semiconductor, and insulator surfaces / 71.20.Tx – Fullerenes and related materials; intercalation compounds / 81.15.Ef – Vacuum deposition
© EDP Sciences, 2003