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Figure 6
The top panel reports three total structure factors for an a-Sr(PO3)2 sample recorded on different Si(Li) elements and in successive runs in order to check the reproducibility of the experimental set-up and of the data treatment procedures. The lower panel reports the Sr differential structure factor in the a-Sr(PO3)2 sample obtained using S(q) near (16.097 keV) and below (15.800 keV) the Sr K edge. In total, 48 S(q) have been recorded for each energy (12–16 h of beam time/energy). The full line is the first-shell contribution to ΔS(q) obtained by fitting the first peak of Δg(r).

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ISSN: 1600-5775
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