Journal
PHYSICAL REVIEW LETTERS
Volume 90, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.90.096802
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We have used scanning tunneling spectroscopy to spatially map the energy-resolved local density of states of individual C-60 molecules on the Ag(100) surface. Spectral maps were obtained for molecular states derived from the C-60 HOMO, LUMO, and LUMO+1 orbitals, revealing new details of the spatially inhomogeneous C-60 local electronic structure. Spatial inhomogeneities are explained using ab initio pseudopotential density functional calculations. These calculations emphasize the need for explicitly including the C-60-Ag interaction and STM tip trajectory to understand the observed C-60 local electronic structure.
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