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![[Figure 5]](ot5600fig5mag.jpg)
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Figure 5
Magnitude of the Fourier transforms (not phase-shift corrected) of the k-weighted reflectivity fine structures for calculated reflection-mode EXAFS data (Θ = 0.2°) from a 3.5 nm thin Cu2O layer on a copper metal substrate for different surface (σ1) and interface (σ2) r.m.s. roughness values, as indicated. The calculations were performed in the framework of the DWBA assuming a correlation length of ξ = 50 nm and a Hurst parameter h = 1 for both interfaces. Calculations within the Névot–Croce model lead to the same FTs. The peaks at R1 ≃ 1.3 Å and R3 ≃ 2.8 Å are related to the first Cu—O and Cu—Cu coordination shells of the copper oxide; the maximum at R2 ≃ 2.2 Å belongs to the first Cu—Cu coordination of metallic copper. (k-range for the FTs: 1.75 Å−1 < k < 11.75 Å−1.) |
![[Figure 5]](ot5600fig5.jpg)
 | JOURNAL OF SYNCHROTRON RADIATION |
ISSN: 1600-5775
