[Ifeffit] Question about EXAFS fitting of mixtures

[Anatoly Frenkel]

That question reminds me of a Russian riddle:
In each corner of a room there is a cat. In the eyes of each cat there are three cats. On the tail of each cat there is a cat. How many cats are there?

Anatoly

> On May 15, 2023, at 7:09 PM, Soyoung Kim <soykim at lbl.gov> wrote:
> 
> 
> Dear all,
> 
> While fitting EXAFS for tiny Pt nanoparticles, a simple question occurred to me. For these two scenarios:
> 1. All Pt atoms are coordinated to 3 O atoms and 3 Pt atoms each.
> 2. Half of the Pt atoms are coordinated to 6 O atoms and half to 6 Pt atoms.
> 
> If we fit only single-scattering paths, would it be possible to tell apart these two scenarios with EXAFS fitting? What about linear combination analysis of the XANES?
> 
> Thank you,
> Soyoung
> 
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