I am frustrated by Fullprof. I aim to refine structural parameters by Reitveld method using Fullprof and have watched dozens of tutorials on youtube. However, either I get an error related to intensity of the xrd data or i get a refinement with chi^2 equal to zero which ofcourse is not possible. Would appreciate some suggestions
Muhammad Azeem are you aware that all parameters like scale or the lattice parameters are fixed and cannot change?
You would need to set the code (or flag) from '0.00' to '11.00' for the first parameter - I usually have 'scale' as the first refined parameter.
I would also rename the atoms. I don't think they are allowed to have the same names.
Jan P Scheifers I named atoms with numbers like Gd1 for Gd and O1 for Oxygen. I know these parameters can not change but they will be fitted...no? I will try with code 11.00. thanks
Muhammad Azeem , kindly note down the parameters while doing refinement at every stage, so that you can start again just before where you got chi square value zero, this will save you time, you may also refer to the following articles:
Article Effect of synthesis methods on dielectric performance of ZnO...
Article Effect of Cu-N co-doping on the dielectric properties of ZnO...
Article Effect on the dielectric properties due to In–N co-doping in...
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