Spatially mapping the spectral density of a single C60 molecule

Journal Article · Mon Jul 01 00:00:00 EDT 2002 · Physical Review Letters

OSTI ID:840880

Lu, Xinghua; Grobis, M; Khoo, K H; Louie, Steve G; Crommie, M F

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 C60-Ag interaction and STM tip trajectory to understand the observed C60 local electronic structure.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Director. Office of Science. Office of Basic Energy Sciences. Division of Material Sciences and Engineering; National Science Foundation Grant DMR00-87088 (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 840880
• Report Number(s): LBNL-55062; PRLTAO; R&D Project: 506701; TRN: US0502185
• Journal Information: Physical Review Letters, Vol. 90, Issue 9; Other Information: Journal Publication Date: 03/06/2003; PBD: 1 Jul 2002; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRONIC STRUCTURE
FUNCTIONALS
SPECTRAL DENSITY
SPECTROSCOPY
TUNNELING