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RE: [sdpd] Help Request
The Rietveld program you are using should have a facility to print out a correlation matrix between the refined parameters.
Mike Glazer
From: sdpd...@yahoogroups.com [mailto:sdpd...@yahoogroups.com] On Behalf Of Apurba Kanti Deb
Sent: 03 March 2010 18:39
To: sdpd...@yahoogroups.com
Subject: [sdpd] Help Request
Dear All,
Recently from Rietveld refinement of XRD for nanocrystalline cubic ZrO2 samples, I got the values of Biso parameters for O atom a bit high (in the range 2.0 � 3.5). I have also got some oxygen deficiency in suuch samples (occupancy varies from 0.81 � 0.93). Now, as the B-valuees are a bit higher, l probably need to evaluate the correlation between B’s and the oxygen occupancy etc.; but don’t have any idea.
How can I find/ calculate the correlations?
Kindly, advise�
Apurba
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