Observation of electronic correlation effect in C{sub 60} adsorbed on an (0001) surface of 2H--MoS{sub 2} by scanning tunneling microscopy
- Department of Chemistry, University of Toronto, Toronto M5S 1A1 (Canada)
- Department of Physics, Hong Kong University of Science and Technology, Kowloon (Hong Kong)
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
Scanning tunneling microscopy (STM) studies of monolayer coverage of C{sub 60} molecules on a 2H--MoS{sub 2} (0001) surface reveal electronic features on the molecules that are rather different from those observed on metal and other semiconductor surfaces. The STM current contrast of the adsorbed C{sub 60} is dominated by that of the underlying crystalline lattice at low bias voltages. The observations can be understood by considering (1) a weak adsorption of C{sub 60} and (2) an electronic correlation effect between the substrate surface and the molecule. All essential aspects of the experimental STM results are quantitatively reproduced by our calculation. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.
- OSTI ID:
- 64849
- Journal Information:
- Applied Physics Letters, Vol. 66, Issue 24; Other Information: PBD: 12 Jun 1995
- Country of Publication:
- United States
- Language:
- English
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