Metal-oxide interactions on copper-segregated and copper-deposited TiO_2 rutile (001) surfaces

摘要

Scanning tunneling microscopy and spectroscopy are used to study local electronic variations across a surface con- taining one monolayer of copper on TiO_2 rutile (001). The interactions that occur at the metal-oxide interface when the sources of the copper are segregation from the bulk and ultra-high-vacuum deposition are compared by character- izing the associated surface morphologies and electronic properties.