[Ifeffit] [Larch] S02 value larger than 1
dxfan at post.kek.jp
dxfan at post.kek.jp
Tue Oct 4 08:15:00 CDT 2022
Dear All,
�
I have a very common question, which is already asked many times: the S02 value is larger than 1.
I measure the Sr K-edge EXAFS of SrTiO3 with temperature dependence.
The S02 value is larger than 1.
I check the book of “XAFS for everyone”, in which say maybe because of the distorted data or wrong structure model.
I check the data measured by other beamline with the same sample, the S02 value still is larger than 1.
I change the background reduction parameters, same result.
I also modify the model, still same result.
�
I am very confused with these results.
I attached the data, FEFF paths, and the fitting python Code the package.
Can anyone help me check my fitting procedure.
�
Best regards,
Fan
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