Spatially Mapping the Spectral Density of a Single C60 Molecule

Xinghua Lu, M. Grobis, K. H. Khoo, Steven G. Louie, and M. F. Crommie
Phys. Rev. Lett. 90, 096802 – Published 6 March 2003

Abstract

We have used scanning tunneling spectroscopy to spatially map the energy-resolved local density of states of individual C60 molecules on the Ag(100) surface. Spectral maps were obtained for molecular states derived from the C60 HOMO, LUMO, and LUMO+1 orbitals, revealing new details of the spatially inhomogeneous C60 local electronic structure. Spatial inhomogeneities are explained using ab initio pseudopotential density functional calculations. These calculations emphasize the need for explicitly including the C60Ag interaction and STM tip trajectory to understand the observed C60 local electronic structure.

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  • Received 22 July 2002

DOI:https://doi.org/10.1103/PhysRevLett.90.096802

©2003 American Physical Society

Authors & Affiliations

Xinghua Lu, M. Grobis, K. H. Khoo, Steven G. Louie, and M. F. Crommie

  • Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300
  • and Materials Sciences Division, Lawrence Berkeley Laboratory, Berkeley, California 94720-7300

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Issue

Vol. 90, Iss. 9 — 7 March 2003

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