On 06/04/2014 08:06, Leonid Solovyov wrote:
The faulting model in DDM gives nearly perfect agreement with the experiment:
http://sites.google.com/site/ddmsuite/home/Copper-DDM.png


It looks a little bit reminiscent of this pattern for ice:

http://www.science24.com/paper/15441

...but the little step at about 40.5 degrees doesn't seem to be in the model? Isn't that coming from some sort of defects or diffuse scattering? Not that I would attempt to model something like that, but a 1D "rod" in 3D reciprocal space (coming from 2D defects) gives step-like profiles in a 1D powder pattern. Although you generally only know that if you've also got data from a single crystal :-)

Cheers,

Jon

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