Privet Leonid,
Nice to "see" you too!
By contrary, most people are thinking that broad size distributions
(resulting in super-Lorentzian profile) is very rare.
Nevertheless.... perhaps you have some time to take a look at JAC(2008)41,
615-627
Best wishes,
Nicolae
----- Original Message -----
From: "Leonid Solovyov" <[EMAIL PROTECTED]>
To: <rietveld_l@ill.fr>
Sent: Tuesday, October 21, 2008 3:23 PM
Subject: Re: question on size-strain analysis
Hi Nicolae,
Nice to hear from you!
I couldn't help noting that in reality your emergence in the Rietveld list
is similarly rare as the narrow size distribution :-). Instrumental
problems are far more regular.
Best wishes,
Leonid
*******************************************************
Leonid A. Solovyov
Institute of Chemistry and Chemical Technology
K. Marx av., 42
660049, Krasnoyarsk Russia
Phone: +7 3912 495663
Fax: +7 3912 238658
www.icct.ru/eng/content/persons/Sol_LA
*******************************************************
--- On Tue, 10/21/08, Nicolae Popa <[EMAIL PROTECTED]> wrote:
From: Nicolae Popa <[EMAIL PROTECTED]>
Subject: Re: question on size-strain analysis
To: [EMAIL PROTECTED], rietveld_l@ill.fr
Date: Tuesday, October 21, 2008, 11:39 AM
Hi,
Besides strain and instrument also size broadening can be
close to a
Gaussian if the crystallite size distribution is very
narrow. For zero
dispersion of size distribution the size peak profile is
about 75% Gaussian
and 25% Lorentzian (on tails). For details see JAC (2002)
35, 338-346 (self
citation) and other ref. cited there (Langford, Louer,
Scardi (2000))
Best,
Nicolae Popa
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