Oxidation of metals at the chromium oxide interface
Abstract
Metal thin-film deposition, over the Cr2O3 surface of CrO2 thin-film substrates, exhibits a redox reaction at the interface. The transition metal forms an oxide in combination with the reduction of the near-surface chromium oxide to Cr2O3. The insulating barrier layer Cr2O3 increases with the formation of Pb3O4 in Pb/Cr2O3/CrO2 and CoO in Co/Cr2O3/CrO2 junctions, respectively.
- Publication:
-
Applied Physics Letters
- Pub Date:
- September 2002
- DOI:
- 10.1063/1.1506942
- Bibcode:
- 2002ApPhL..81.2109C
- Keywords:
-
- oxidation;
- chemical interdiffusion;
- chromium compounds;
- metallic thin films;
- X-ray photoelectron spectra;
- ultraviolet photoelectron spectra;
- lead;
- cobalt;
- ferromagnetic materials;
- Chromium Compounds;
- Chromium Oxides;
- Cobalt;
- Ferromagnetic Materials;
- Lead (Metal);
- Metal Films;
- Oxidation;
- Oxidation-Reduction Reactions;
- Photoelectrons;
- Solid-Solid Interfaces;
- Surface Reactions;
- Thin Films;
- Ultraviolet Spectra;
- X Ray Spectra;
- 68.35.Fx;
- 79.60.Jv;
- 75.50.Cc;
- Solid-State Physics;
- Diffusion;
- interface formation;
- Interfaces;
- heterostructures;
- nanostructures;
- Other ferromagnetic metals and alloys