I wanted to know the parameter which has to be refined to fit the simulated pattern to the preferentially oriented film pattern. I have tried the under 'profile' in Fullprof, however I could not refine it. Please suggest me.
If you create the pcr file with edpcr, firstly you have to go to Patterns-Geometry/IRF-Corrections and choose the preferred orientation function. Rietveld-Toraya is the default choice in Fullprof, but you can also try other types (I personally prefer March-Dollase, but mainly because I usually use other software). Then you can go to Refinement-Profile-Preferred orientation. Here you have to fix the preferred orientation axis (you can use only one with Rietveld-Toraya but up to 5 with March-Dollase), set up the initial values and start refinement.
It can be a good idea to create some models with PowderCell first, in order to find out how different parameter values affect the diffraction pattern and choose the most likely initial parameters.
Alexander B. Missyul’ Very helpful comment. I have one question:
In case of Multi axial Dollase function (NOR = 2) where you have the freedom to refine multiple (hkl) peaks with preferred orientation, what should be the values of G1 and G2?
where G1 defines the sample morphology and G2 defines the fraction of sample that is not textured.
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