Agree. Took a quick look at your spectrum. The IrOx seems to be extremely amorphous without much Ir-Ir interactions. The dip is around 11 (A-1) in the k-space. So you may just truncate anything beyond that dip and the remaining spectrum should carry most useful information and be fitable, at least for the first shell Ir-O bond.
On Sun, Jul 16, 2023 at 11:13 PM Carlo Segre <se...@iit.edu> wrote: > Hi Kavya: > > What you have are not glitches but shifts in the absolute absorption > probably due to bubbles or droplets moving through the beam. You can tell > these from crystal glitches because the glitches are sharp and occur at the > same energy in every scan while these are likely to move around from scan > to scan. In my experience, this kind of change in the spectrum is not > correctable. Hopefully you have lots of scans and only some of them have > these artifacts and can be thrown out. > > Carlo > > On Sun, Jul 16, 2023 at 10:00 PM Shailendra <kavyarachna1...@gmail.com> > wrote: > >> Hi, IFEFFIT community, >> >> I am Rachna, a Ph.D. student working on IrO2 based OER catalyst. I am a >> new XAS user. Recently, we recorded some XAS on amorphous IrO2 electrode >> samples however some of the samples show a dip in adsorption at high >> energy. The glitches are similar to the one in the attached photo. I am >> attaching the Athena file for the measurements too. I was wondering if >> there is a way to remove such glitches. >> I would greatly appreciate any tips or tricks you may have for dealing >> with this situation. >> >> Thanks, >> Kavya Rachna >> _______________________________________________ >> Ifeffit mailing list >> Ifeffit@millenia.cars.aps.anl.gov >> http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit >> Unsubscribe: http://millenia.cars.aps.anl.gov/mailman/options/ifeffit >> > > > -- > Carlo U. Segre (he/him) -- Duchossois Leadership Professor of Physics > Professor of Materials Science & Engineering > Director, Center for Synchrotron Radiation Research and Instrumentation > Illinois Institute of Technology > Voice: 312.567.3498 Fax: 312.567.3494 > se...@iit.edu http://phys.iit.edu/~segre se...@debian.org > > _______________________________________________ > Ifeffit mailing list > Ifeffit@millenia.cars.aps.anl.gov > http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit > Unsubscribe: http://millenia.cars.aps.anl.gov/mailman/options/ifeffit >
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