Moire contrast in the local tunneling barrier height images of monolayer graphite on Pt(111)

Authors
Sasaki, M Yamada, Y Ogiwara, Y Yagyu, S Yamamoto, S
Citation
M. Sasaki et al., Moire contrast in the local tunneling barrier height images of monolayer graphite on Pt(111), PHYS REV B, 61(23), 2000, pp. 15653-15656
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
61
Issue
23
Year of publication
2000
Pages
15653 - 15656
Database
ISI
SICI code
0163-1829(20000615)61:23<15653:MCITLT>2.0.ZU;2-A
Abstract
Moire contrast between monolayer graphite and Pt(111) lattices is observed in local tunneling barrier height (LBH) images, where LBH's are: calibrated with quasistatic I-z measurements. The observed Moire amplitude of 1.6 eV, much larger than the possible maximum amplitude due to the electronic inte rference between lattices, suggests that there exists the spatial modulatio n of the microscopic work function of monolayer graphite in a nanometer sca le originated from the interaction between layered adsorbate and substrate.