Table 1. Data Extracted by the Series of 2D-GIWAXS Recorded at Different αI for Spi SOM, Opa SOM, and CaCO3 Mixed with Spi (Spi_mix) and with Opa (Opa_mix)a.
q1 (Å–1) | fwhm1 (Å–) | q2 (Å–1) | fwhm2 (Å–1) | A1 | A2 | A2/(A2 + A1) (%) | As/(As + Ab) (%) | |
---|---|---|---|---|---|---|---|---|
Spi SOM | 0.38 | 0.08 | 0.68 | 0.16 | 10 | 33 | 76 | from 5 (αI l) to 40 (αI h) |
Opa SOM | 0.38 | 0.10 | 0.67 | 0.16 | 9 | 29 | 76 | from 5 (αI l) to 40 (αI h) |
Spi SOM mix | 0.38 | 0.08 | 0.68 | 0.16 | 4 | 9 | 70 | from 0 (αI l) to 20 (αI h) |
Opa SOM mix | 0.34 | 0.10 | 0.66 | 0.18 | 2 | 3 | 60 | from 0 (αI l) to 13 (αI h) |
For the two peaks (see Figure 3) we report the position (q), the width (W), the integrated area (A) and their relative area. From the fit of the azimuthal profiles of peak 2, we determine the two Gaussian contributions [sharp (s) and broad (b), and we report their area ratio from the surface region [lowest αI (αI l)] to whole thickness [highest αI (αI h)].