High-resolution images, multislice image simulation and image processing are used to study surface roughness in small metallic particles. The images of Pt particles on alumina substrates show displacements of the atomic columns that are shown to be due to local changes in thickness. It is concluded that surface roughness is present in Pt particles on Al2O3 and can be studied with these techniques.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics