“Molecular Clusters” on the Surface of an Oxidizing Metal
FIELD ion microscopy, which holds the possibility of resolving the individual atoms in a metallic surface, should in principle be a powerful tool for the study of reactions on surfaces. As part of an extensive study of the mechanism of oxidation of several metals, we have recently observed the formation of characteristic, reproducible, small clusters of atoms of regular shape when a perfect iridium surface is exposed to oxygen.
SOME APPLICATIONS OF ION‐ELECTRON IMAGE CONVERSION IN FIELD ION MICROSCOPE STUDIES OF SURFACE REACTIONS
An ion‐electron image converter has been applied to field ion studies of surface reactions. Argon imaging has been used to study oxygen and carbon monoxide adsorption on tungsten while the effect of using the reactive imaging gases, oxygen, nitrogen, and carbon monoxide, has also been investigated. The reaction of nitrogen is of particular interest in the context of field‐induced rearrangement processes.
Atomic configurations in ideally flat surfaces—I: Construction of models of surfaces in face-centred and body-centred cubic crystals
Abstract A method is described for constructing ball models of atomically flat surfaces of any orientation in face-centred and body-centred cubic crystals.