Observations of a large number of different oxides in the electron microscope clearly indicate that a crucial role is played by the presence or absence of encapsulating layers, either amorphous carbon, graphitic carbon or damaged metallic regions produced by DIET of the oxygen, and point defect diffusion in the subsurface region. In the presence of an encapsulation layer DIET slows by a factor which is related to the point defect migration through this layer.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics