solid solution

A.M.T. Bell ( (no email) )
Mon, 14 Nov 1994 09:51:38 +0000

On Nov 14, 11:09am, patrizia canton wrote:
> Subject: Solid solution
> hello
> I have a problem:two ions randomly distributed with the same atomic position
> into the same cell, one ion is predominant, the other one is in minor
> quantity (at the moment I don't know exactly this quantity). Is it possible
to
> consider these two atoms simultaneously? If it is, how can I do it?
> thanks
>-- End of excerpt from patrizia canton

If you have any decent Rietveld software this should be straightforward
enough. Give the atomic positions for the two ions the same codewords so
that when these are refined they will stay the same. Refine the ionic
occupancies and temperature factors for the two ions with separate codewords.
You should then be able to find out the quantities of your two ions.

-- tony bell    A.M.T.Bell@dl.ac.ukcrystallographer and marathon runner (but not necessarily in that order :-))engineering and physical science research councildaresbury laboratory, daresbury, warrington, cheshire, UK. WA4 4AD.