Abstract
Co metastable structures are formed in Co-Ag alloy films with the aid of glancing incident ions during deposition. The structures of Co are characterized by X-ray absorption near-edge structure (XANES) spectroscopy at the Co K-edge. The results indicate that two kinds of Co phases coexist in every film. One is α-Co or β-Co and the other is named fcc-II with a = 4.06 Å. It is thought that the stress between Co and Ag clusters induces the formation of β-Co and the fcc-II phase. The role of glancing incident ions is to trigger a collision cascade on the surface and to facilitate both thermodynamics and kinetics aspects of cluster mixing.
| Original language | English |
|---|---|
| Pages (from-to) | 547-552 |
| Number of pages | 6 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
| Volume | 260 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jul 2007 |
| Externally published | Yes |
Keywords
- Ion beam processing
- Metastable phases
- XANES