Scanning tunneling microscopy study of TiOx on Rh(111)

1 March 1991

journal article
research article
Published by American Vacuum Society in Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures

Vol. 9 (2) , 853-856
https://doi.org/10.1116/1.585526

Abstract

Scanning tunneling microscopy has been used to study submonolayer coverages of titanium oxide on rhodium. After reduction with CO, titania is shown to form one atomic layer thick islands ∼20 Å in size on the Rh(111) surface at submonolayer coverages. High resolution filled state images show enhanced contrast at the island perimeter. The ‘‘ring shaped’’ appearance of the islands is related to the electronic structure of the titania overlayer.