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Figure 5
Results of an EXAFS data fitting procedure of Nb foils heat-treated in vacuum as a function of the heating time at 900°C. For the experiments, the samples were cooled to room temperature under high vacuum prior to the measurements. (a) Plot of the amplitude reduction factor S0 2; the dashed and the dotted lines represent the average S0 2 and its confidence interval. (b) The distances of the first two Nb–Nb coordination shells (R1, R2) in comparison with their literature values (dashed lines) and (c) their mean-squared displacements ([\sigma_1^{2}], [\sigma_2^{2}]) with average values (dotted lines). The orange data points belong to the sample heat-treated in the commercial high-temperature cell. See text for more details.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 28| Part 1| January 2021| Pages 266-277
https://doi.org/10.1107/S1600577520013557
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