Difficulty in generating XANES for Ni.
Dear list I am using feff8.2 to generate the XANES for Ni and compare it with the experimental spectra collected on pure Ni. To include the contribution from different scattering paths, I have increased the value of *r_fms* in steps. I find that the intensity ratios of the generated spectra match with that of the experimental spectra when* r_fms* is around 5 angstroms (figure below). Further increasing the* r_fms* produces a mismatch in the intensity ratios of the calculated and the experimental spectra, as shown in the figure. [image: fig.jpg] As per my understanding, increasing the *r_fms* should include more scattering paths and give a better match with the experimental spectra. Please comment on what might be the problem here. Thanks in advance. Jaskirat Brar FMP Lab, South Campus IIT Mandi, H.P., India
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jaskirat brar