XPS Analysis of Co–Ni Alloy Passive Layers: Computational Peak-on-Satellite Analysis of 2p Core Levels Reveals the Influence of the Co/Ni Ratio on Oxide Chemistry and Structure
Barbara Laïk, Morgane Richet, Nicolas Emery, Loïc Perrière, Yvan Cotrebil, Vincent Russier, Ivan Guillot, Pierre Dubot · 2026
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Description
Barbara Laïk and co-authors peel apart the thin oxide skin that guards cobalt-nickel alloys, in a 2026 surface study. These alloys serve in car parts and magnetic memory, and a film only a few nanometers thick gives them their rust defense. The team read the film's chemistry with X-ray photoelectron spectroscopy and stepped down through it with gentle ion sanding, across blends from pure nickel to pure cobalt.
Earlier work on one blend had shown a patchy skin, with cobalt oxide on some spots and nickel oxide on others. Across the blend series, film thickness and makeup shifted with the cobalt share in ways the authors tie to the metal's magnetism below. The results link a bulk trait of the alloy to the chemistry of the skin that guards it.
Catalog record
| CREATOR | Barbara Laïk, Morgane Richet, Nicolas Emery, Loïc Perrière, Yvan Cotrebil, Vincent Russier, Ivan Guillot, Pierre Dubot |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 45 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |