ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Grazing incidence x-ray reflectometry has been used to study surface oxidation as a diffusion barrier for Al deposited on ferromagnetic metals (Co, Fe, Ni, and Ni80Fe20). Samples of the form SiO2(backward-slash)10 nm X(backward-slash)4 nm Al with X=(Co, Fe, Ni, and Ni80Fe20) were investigated for X(backward-slash)Al intermixing. Surface oxidation was achieved by exposing the ferromagnetic layer to O2 to oxidize the top two or three atomic layers before depositing the Al layer. Specular x-ray scans were used for the analysis. Samples of the form SiO2(backward-slash)10 nm X(backward-slash)4 nm Au were used to separate topographical roughness from intermixing. Surface oxidation was found to suppress the diffusion of Al into Co, Ni, and Ni80Fe20 but not into Fe. © 2001 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1359151
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