Electronic structure of C-60 on Au(887) (Articolo in rivista)

Type
Label
  • Electronic structure of C-60 on Au(887) (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Schiller, F; Ruiz-Oses, M; Ortega, JE; Segovia, P; Martinez-Blanco, J; Doyle, BP; Perez-Dieste, V; Lobo, J; Neel, N; Berndt, R; Kroger, J (2006)
    Electronic structure of C-60 on Au(887)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Schiller, F; Ruiz-Oses, M; Ortega, JE; Segovia, P; Martinez-Blanco, J; Doyle, BP; Perez-Dieste, V; Lobo, J; Neel, N; Berndt, R; Kroger, J (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 125 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Donostia Int Phys Ctr, E-20018 Donostia San Sebastian, Spain; Univ Pais Vasco, Dept Fis Aplicada 1, E-20018 Donostia San Sebastian, Spain; Univ Pais Vasco, CSIC, Ctr Mixto, E-20018 Donostia San Sebastian, Spain; Univ Autonoma Madrid, Dept Fis Mat Condensada, E-28049 Madrid, Spain; Univ Autonoma Madrid, Inst Ciencias Mat Nicolas Cabrera, E-28049 Madrid, Spain; CNR, INFM, Lab Nazl TASC, I-34012 Trieste, Italy; Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland; Univ Kiel, Inst Expt & Angew Phys, D-24098 Kiel, Germany (literal)
Titolo
  • Electronic structure of C-60 on Au(887) (literal)
Abstract
  • We present an analysis of the electronic structure of C-60 adsorbed on a vicinal Au(111) surface at different fullerene coverages using photoemission, x-ray absorption, and scanning tunneling microcopy/spectroscopy (STS). STS provides a straightforward determination of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) levels with respect to the Fermi energy. At C-60 coverages of 0.5 and 1 ML a 2.7 eV wide HOMO-LUMO gap is found. The near-edge x-ray absorption fine structure (NEXAFS) spectrum for the 0.5 ML C-60 nanomesh structure displays a significant intensity at the low energy side of the LUMO exciton peak, which is explained as due to absorption into HOMO-LUMO gap states localized at individual C-60 cluster edges. From 0.5 to 1 ML we observe a rigid shift of the HOMO-LUMO peaks in the STS spectra and an almost complete quenching of the gap states feature in NEXAFS. (c) 2006 American Institute of Physics. (literal)
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