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f' and f'' scale problem?

Hi all,

i find an unreasonable scale discrepancy between f' and f'' calculated by feff (using XANES and DANES cards on a Mn oxyde cluster) and those from the Cromer-Liberman tables (See picture). If f' might still be reasonable, f'' is rather small. I suspect something wrong here as f' and f" from feff don't seem to be scaled correctly neither relatively to each other.
   Has someone experienced that?
   Thank you!

   i use feff 8.20x8


Stéphane GRENIER
Dept of Physics, 510,
Brookhaven National Laboratory
Upton, New York, 11973, USA.
Tel: (1-631) 344 4963
Fax: (1-631) 344 2739

JPEG image