I've just started using fullprof for rietveld refinement and I got strange peaks. Can anyone help me?

Two phases, bcc iron and fcc iron is set for calculation. I didn't add any background to the pcr file yet. Scale, b factor, u w v (FWHM), IG are set for refinement.  I couldn't find a parameter...

13 April 2016 3,604 8 View