I imagine they could, yes. Motivation to do so is another question entirely.
Considering myself more of an experienced amateur, and a fan of the Socratic Method, let me ask you a few questions: What do you currently understand about the relationship between two atoms in a material and the mean square relative displacement (i.e. sigma^2) associated with the distance between them? What does it mean to have a mean-square-displacement? ..and then a mean-square-relative displacement? How would correlated, anti-correlated and uncorrelated relative motion affect the msrd? Now extend this thinking to an ensemble of atoms. What might you expect to be the source of a msrd in a perfect crystal at finite temperature? What additional contribution may result from imperfections? On Wed, Jun 7, 2017 at 7:12 PM, Shaofeng Wang <wangshaof...@iae.ac.cn> wrote: > Dear everyone, > > Could experts explain the relationship between sigma2 and atomic distance > of same two atoms? > > > Best regards, > > Shaofeng > > -------------------------------------- > Shaofeng Wang, Ph.D of Geochemistry > Environmental Molecular Science Group > Institute of Applied Ecology, Chinese Academy of Sciences > Shenyang, 110016, China > wangshaof...@iae.ac.cn > www.iae.cas.cn > > > *From:* Shaofeng Wang <wangshaof...@iae.ac.cn> > *Sent:* Friday, June 02, 2017 4:32 PM > *To:* XAFS Analysis using Ifeffit <ifeffit@millenia.cars.aps.anl.gov> > *Subject:* [Ifeffit] a question about S02 > > Hi everyone, > > I am fitting a standard material scorodite. The fitting results are pretty > good, but the S02 is around 1.2 when the k range = 4-13.5. Is this result > reasonable? Please see the attached files. > > > > Best regards, > > Shaofeng > > -------------------------------------- > Shaofeng Wang, Ph.D of Geochemistry > Environmental Molecular Science Group > Institute of Applied Ecology, Chinese Academy of Sciences > Shenyang, 110016, China > wangshaof...@iae.ac.cn > www.iae.cas.cn > > ------------------------------ > _______________________________________________ > 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 > > > _______________________________________________ > 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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