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De : Kotaro SAITO [mailto:kotaro.sa...@kek.jp]
Envoyé : mercredi 30 septembre 2015 10:15
À : Radovan Cerny
Cc : Alan Hewat; loba...@inorg348-1.chem.msu.ru; Rietveld_l@ill.fr;
l_solov...@yahoo.com
Objet : Re: Selective peak broadening - interpretation and handling in FullProf
Dear Radovan and Rietve
> de Kotaro SAITO
> Envoyé : vendredi 7 août 2015 09:49
> À : Alan Hewat; loba...@inorg348-1.chem.msu.ru; Rietveld_l@ill.fr;
> l_solov...@yahoo.com
> Objet : Re: Selective peak broadening - interpretation and handling in
> FullProf
>
> > Alan and Maxim,
>
> Tha
-1.chem.msu.ru; Rietveld_l@ill.fr;
l_solov...@yahoo.com
Objet : Re: Selective peak broadening - interpretation and handling in FullProf
> Alan and Maxim,
Thanks for the comment and the article.
I relieved that I know the point.
> Leonid,
Yes, the instrumental resolution itself increases
> Alan and Maxim,
Thanks for the comment and the article.
I relieved that I know the point.
> Leonid,
Yes, the instrumental resolution itself increases with d (or TOF).
But it is still strange for me that only all-odd peaks show different
d-dependence from CeO2 and other all-even peaks in terms
Message -
From: Kotaro SAITO
To: Radovan Cerny ; l_solov...@yahoo.com
Cc: "Rietveld_l@ill.fr"
Sent: Tuesday, August 4, 2015 4:54 PM
Subject: Re: Selective peak broadening - interpretation and handling in FullProf
Dear Radovan and Leonid,
Thanks for your comments.
Both papers are very i
On 4 August 2015 at 11:54, Kotaro SAITO wrote:
> Or do I miss some basic points about diffraction?
I won't try to address your specific material... and I'm being called to
lunch :-) But for beginners who may be lost in these technical papers, I
will attempt the following trivial explanation
If
Dear Radovan and Leonid,
Thanks for your comments.
Both papers are very interesting and seem to contain good hints for my case.
Now I am confusing when I compare peak width vs. 2th in constant wave profiles
and peak width vs. d in TOF.
When I plot FWHM/d vs. d, FWHM/d of all-odd peaks increases
Dear Kotaro,
The broadening you describe seems to be due to a non-uniform distribution of
site occupancies in the crystal lattice. A general model for such
defect-related broadening is described here:
http://dx.doi.org/10.1107/S00218898114X
The model is included into the DDM program (but
Dear Kotaro,
The same rule of line broadening was observed in beta phase of Mg(BH4)2, and
was explained as ordering of twin domains, in other words microtwinning which
creates a superstructure to the even,even,even subcell. If the twinning
probability is not 100%, then the odd,odd,odd reflectio
