Observation of Gold Thin Film on Cesium Graphite Intercalation Compound by Scanning Tunneling Microscopy

Autor: Kinno, Teruyuki, Miyoko O. Watanabe, Miyoko O. Watanabe, Koichi Mizushima, Koichi Mizushima
Zdroj: Japanese Journal of Applied Physics; June 1996, Vol. 35 Issue: 6 p3764-3764, 1p
Abstrakt: Thin film on stage-1 cesium graphite intercalation compound (Cs-GIC) which is known to be of very low work function has been studied using scanning tunneling microscopy (STM). After a small amount of Au was evaporated onto a Cs-GIC cleaved under ultrahigh-vacuum conditions, its surface was observed. At first, many islands with a diameter of several nanometers were found. These islands, however, gradually disappeared from the scanned region during observation. Our results suggest that the interaction of Au islands with Cs-GIC is weak, in spite of the large difference in work function between them.
Databáze: Supplemental Index