Dear Researchers,
I am trying to refine the BiFeO3 neutron diffraction data using GSAS-II, how i am unable to reduced the chi square. In XRD it crystallizes in R3c phase with reduced chi square of 0.2, However, i am unable to get reduced chi square while refining the neutron diffraction using same phase. Why? Please suggest me any further direction to rectify this problem.
Thanks in advance